diff --git a/packages/react-native/Libraries/Text/Text/RCTTextShadowView.h b/packages/react-native/Libraries/Text/Text/RCTTextShadowView.h
index f3202b5fd37315..983f978b897606 100644
--- a/packages/react-native/Libraries/Text/Text/RCTTextShadowView.h
+++ b/packages/react-native/Libraries/Text/Text/RCTTextShadowView.h
@@ -20,6 +20,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, assign) BOOL adjustsFontSizeToFit;
 @property (nonatomic, assign) CGFloat minimumFontScale;
 @property (nonatomic, copy) RCTDirectEventBlock onTextLayout;
+@property (nonatomic, copy) NSArray *textLayoutRegions;
 
 - (void)uiManagerWillPerformMounting;
 
diff --git a/packages/react-native/Libraries/Text/Text/RCTTextViewManager.m b/packages/react-native/Libraries/Text/Text/RCTTextViewManager.m
index 7b53c80d557acc..6adacfc38b2b64 100644
--- a/packages/react-native/Libraries/Text/Text/RCTTextViewManager.m
+++ b/packages/react-native/Libraries/Text/Text/RCTTextViewManager.m
@@ -32,6 +32,7 @@ @implementation RCTTextViewManager {
 RCT_REMAP_SHADOW_PROPERTY(minimumFontScale, minimumFontScale, CGFloat)
 
 RCT_EXPORT_SHADOW_PROPERTY(onTextLayout, RCTDirectEventBlock)
+RCT_EXPORT_SHADOW_PROPERTY(textLayoutRegions, NSArray)
 
 RCT_EXPORT_VIEW_PROPERTY(selectable, BOOL)
 
diff --git a/packages/react-native/Libraries/Text/TextNativeComponent.js b/packages/react-native/Libraries/Text/TextNativeComponent.js
index 812f334806eb73..167d5e2e624a99 100644
--- a/packages/react-native/Libraries/Text/TextNativeComponent.js
+++ b/packages/react-native/Libraries/Text/TextNativeComponent.js
@@ -44,6 +44,7 @@ const textViewConfig = {
     minimumFontScale: true,
     textBreakStrategy: true,
     onTextLayout: true,
+    textLayoutRegions: true,
     onInlineViewLayout: true,
     dataDetectorType: true,
     android_hyphenationFrequency: true,
diff --git a/packages/react-native/Libraries/Text/TextProps.js b/packages/react-native/Libraries/Text/TextProps.js
index bb9348f6a55e4f..563c9488314fd0 100644
--- a/packages/react-native/Libraries/Text/TextProps.js
+++ b/packages/react-native/Libraries/Text/TextProps.js
@@ -168,6 +168,11 @@ export type TextProps = $ReadOnly<{|
   onMoveShouldSetResponder?: ?() => boolean,
   onTextLayout?: ?(event: TextLayoutEvent) => mixed,
 
+  /**
+   * Regions for text layout tracking
+   */
+  textLayoutRegions?: ?$ReadOnlyArray<$ReadOnlyArray<number>>,
+
   /**
    * Defines how far your touch may move off of the button, before
    * deactivating the button.
diff --git a/packages/react-native/Libraries/Types/CoreEventTypes.d.ts b/packages/react-native/Libraries/Types/CoreEventTypes.d.ts
index 7aff083b07a2bf..e70c467cec4e90 100644
--- a/packages/react-native/Libraries/Types/CoreEventTypes.d.ts
+++ b/packages/react-native/Libraries/Types/CoreEventTypes.d.ts
@@ -33,11 +33,22 @@ interface TextLayoutLine {
   y: number;
 }
 
+interface TextLayoutRegion {
+  text: string;
+  height: number;
+  width: number;
+  x: number;
+  y: number;
+  line: number;
+  region: number;
+}
+
 /**
  * @see TextProps.onTextLayout
  */
 export interface TextLayoutEventData extends TargetedEvent {
   lines: TextLayoutLine[];
+  regions: TextLayoutRegion[];
 }
 
 // Similar to React.SyntheticEvent except for nativeEvent
diff --git a/packages/react-native/Libraries/Types/CoreEventTypes.js b/packages/react-native/Libraries/Types/CoreEventTypes.js
index a0234e95f26d16..bd9eb5cd8e017d 100644
--- a/packages/react-native/Libraries/Types/CoreEventTypes.js
+++ b/packages/react-native/Libraries/Types/CoreEventTypes.js
@@ -72,6 +72,16 @@ export type TextLayout = $ReadOnly<{|
   xHeight: number,
 |}>;
 
+export type TextRegion = $ReadOnly<{|
+  text: string,
+  height: number,
+  width: number,
+  x: number,
+  y: number,
+  line: number,
+  region: number,
+|}>;
+
 export type LayoutEvent = SyntheticEvent<
   $ReadOnly<{|
     layout: Layout,
@@ -81,6 +91,7 @@ export type LayoutEvent = SyntheticEvent<
 export type TextLayoutEvent = SyntheticEvent<
   $ReadOnly<{|
     lines: Array<TextLayout>,
+    regions: Array<TextRegion>,
   |}>,
 >;
 
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
index c785ad9b3075c6..72b95c787a04d4 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/FabricUIManager.java
@@ -51,6 +51,7 @@
 import com.facebook.react.bridge.UiThreadUtil;
 import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.common.build.ReactBuildConfig;
+import com.facebook.react.common.mapbuffer.MapBuffer;
 import com.facebook.react.common.mapbuffer.ReadableMapBuffer;
 import com.facebook.react.config.ReactFeatureFlags;
 import com.facebook.react.fabric.events.EventBeatManager;
@@ -443,28 +444,35 @@ public void onCatalystInstanceDestroy() {
   }
 
   @SuppressWarnings("unused")
-  private NativeArray measureLines(
-      ReadableMap attributedString, ReadableMap paragraphAttributes, float width, float height) {
-    return (NativeArray)
+  private NativeMap measureLines(
+      ReadableMap attributedString,
+      ReadableMap paragraphAttributes,
+      float width,
+      float height,
+      MapBuffer textLayoutRegions) {
+    return (NativeMap)
         TextLayoutManager.measureLines(
             mReactApplicationContext,
             attributedString,
             paragraphAttributes,
-            PixelUtil.toPixelFromDIP(width));
+            PixelUtil.toPixelFromDIP(width),
+            textLayoutRegions);
   }
 
   @SuppressWarnings("unused")
-  private NativeArray measureLinesMapBuffer(
+  private NativeMap measureLinesMapBuffer(
       ReadableMapBuffer attributedString,
       ReadableMapBuffer paragraphAttributes,
       float width,
-      float height) {
-    return (NativeArray)
+      float height,
+      ReadableMapBuffer textLayoutRegions) {
+    return (NativeMap)
         TextLayoutManagerMapBuffer.measureLines(
             mReactApplicationContext,
             attributedString,
             paragraphAttributes,
-            PixelUtil.toPixelFromDIP(width));
+            PixelUtil.toPixelFromDIP(width),
+            textLayoutRegions);
   }
 
   @SuppressWarnings("unused")
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/FontMetricsUtil.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/FontMetricsUtil.java
index f19a1b0425888d..019573d4fb4baa 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/FontMetricsUtil.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/FontMetricsUtil.java
@@ -13,8 +13,10 @@
 import android.text.TextPaint;
 import android.util.DisplayMetrics;
 import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.bridge.WritableArray;
 import com.facebook.react.bridge.WritableMap;
+import com.facebook.react.common.mapbuffer.MapBuffer;
 
 public class FontMetricsUtil {
 
@@ -22,10 +24,11 @@ public class FontMetricsUtil {
   private static final String X_HEIGHT_MEASUREMENT_TEXT = "x";
   private static final float AMPLIFICATION_FACTOR = 100;
 
-  public static WritableArray getFontMetrics(
-      CharSequence text, Layout layout, TextPaint paint, Context context) {
+  public static WritableMap getFontMetrics(
+      CharSequence text, Layout layout, TextPaint paint, Context context, MapBuffer textLayoutRegions) {
     DisplayMetrics dm = context.getResources().getDisplayMetrics();
     WritableArray lines = Arguments.createArray();
+    WritableArray regions = Arguments.createArray();
     // To calculate xHeight and capHeight we have to render an "x" and "T" and manually measure
     // their height.
     // In order to get more precision than Android offers, we blow up the text size by 100 and
@@ -41,6 +44,7 @@ public static WritableArray getFontMetrics(
     paintCopy.getTextBounds(
         X_HEIGHT_MEASUREMENT_TEXT, 0, X_HEIGHT_MEASUREMENT_TEXT.length(), xHeightBounds);
     double xHeight = xHeightBounds.height() / AMPLIFICATION_FACTOR / dm.density;
+
     for (int i = 0; i < layout.getLineCount(); i++) {
       Rect bounds = new Rect();
       layout.getLineBounds(i, bounds);
@@ -56,8 +60,47 @@ public static WritableArray getFontMetrics(
       line.putDouble("xHeight", xHeight);
       line.putString(
           "text", text.subSequence(layout.getLineStart(i), layout.getLineEnd(i)).toString());
+
       lines.pushMap(line);
     }
-    return lines;
+
+    for (int j = 0; j < textLayoutRegions.getCount(); j++) {
+      for (int i = 0; i < layout.getLineCount(); i++) {
+        Rect bounds = new Rect();
+        layout.getLineBounds(i, bounds);
+
+        MapBuffer textLayoutRegion = textLayoutRegions.getMapBuffer(j);
+
+        int offset = layout.getLineEnd(i) >= textLayoutRegion.getInt(1) ? 0 : 1; 
+        int startIndex = Math.max(layout.getLineStart(i), textLayoutRegion.getInt(0));
+        int endIndex = Math.min(layout.getLineEnd(i), textLayoutRegion.getInt(1)) - offset;
+
+        if (startIndex > endIndex + 1) {
+          break;
+        }
+
+        Rect regionBounds = new Rect(
+          (int)layout.getPrimaryHorizontal(startIndex),
+          bounds.top,
+          (int)layout.getPrimaryHorizontal(endIndex),
+          bounds.bottom);
+
+        WritableMap region = Arguments.createMap();
+        region.putDouble("x", regionBounds.left / dm.density);
+        region.putDouble("y", regionBounds.top / dm.density);
+        region.putDouble("width", regionBounds.width() / dm.density);
+        region.putDouble("height", regionBounds.height() / dm.density);
+        region.putString("text", text.subSequence(startIndex, endIndex).toString());
+        region.putInt("region", j);
+        region.putInt("line", i);
+        regions.pushMap(region);
+      }
+    }
+
+    WritableMap textLayoutMetrics = Arguments.createMap();
+    textLayoutMetrics.putArray("lines", lines);
+    textLayoutMetrics.putArray("regions", regions);
+
+    return textLayoutMetrics;
   }
 }
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/ReactTextShadowNode.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/ReactTextShadowNode.java
index 419eadb7450a4b..d17d6f77d7cf11 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/ReactTextShadowNode.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/ReactTextShadowNode.java
@@ -24,6 +24,8 @@
 import com.facebook.react.bridge.ReactSoftExceptionLogger;
 import com.facebook.react.bridge.WritableArray;
 import com.facebook.react.bridge.WritableMap;
+import com.facebook.react.bridge.ReadableArray;
+import com.facebook.react.common.mapbuffer.MapBuffer;
 import com.facebook.react.uimanager.NativeViewHierarchyOptimizer;
 import com.facebook.react.uimanager.PixelUtil;
 import com.facebook.react.uimanager.ReactShadowNode;
@@ -58,6 +60,7 @@ public class ReactTextShadowNode extends ReactBaseTextShadowNode {
   private @Nullable Spannable mPreparedSpannableText;
 
   private boolean mShouldNotifyOnTextLayout;
+  private MapBuffer mTextLayoutRegions;
 
   private final YogaMeasureFunction mTextMeasureFunction =
       new YogaMeasureFunction() {
@@ -107,15 +110,14 @@ public long measure(
 
           if (mShouldNotifyOnTextLayout) {
             ThemedReactContext themedReactContext = getThemedContext();
-            WritableArray lines =
-                FontMetricsUtil.getFontMetrics(
-                    text, layout, sTextPaintInstance, themedReactContext);
-            WritableMap event = Arguments.createMap();
-            event.putArray("lines", lines);
+             WritableMap textLayoutMetrics =
+                 FontMetricsUtil.getFontMetrics(
+                     text, layout, sTextPaintInstance, themedReactContext, mTextLayoutRegions);
+
             if (themedReactContext.hasActiveReactInstance()) {
               themedReactContext
                   .getJSModule(RCTEventEmitter.class)
-                  .receiveEvent(getReactTag(), "topTextLayout", event);
+                  .receiveEvent(getReactTag(), "topTextLayout", textLayoutMetrics);
             } else {
               ReactSoftExceptionLogger.logSoftException(
                   "ReactTextShadowNode",
@@ -357,6 +359,11 @@ public void setShouldNotifyOnTextLayout(boolean shouldNotifyOnTextLayout) {
     mShouldNotifyOnTextLayout = shouldNotifyOnTextLayout;
   }
 
+  @ReactProp(name = "textLayoutRegions")
+  public void setTextLayoutRegions(ReadableArray textLayoutRegions) {
+    mTextLayoutRegions = (MapBuffer) textLayoutRegions;
+  }
+
   @Override
   public Iterable<? extends ReactShadowNode> calculateLayoutOnChildren() {
     // Run flexbox on and return the descendants which are inline views.
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManager.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManager.java
index e5dc5fb074ce9a..0aa135af2ef4f9 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManager.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManager.java
@@ -30,8 +30,10 @@
 import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.bridge.ReadableMap;
 import com.facebook.react.bridge.ReadableNativeMap;
-import com.facebook.react.bridge.WritableArray;
+import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.common.build.ReactBuildConfig;
+import com.facebook.react.common.mapbuffer.MapBuffer;
+import com.facebook.react.common.mapbuffer.ReadableMapBuffer;
 import com.facebook.react.uimanager.PixelUtil;
 import com.facebook.react.uimanager.ReactStylesDiffMap;
 import com.facebook.react.uimanager.ViewProps;
@@ -564,11 +566,12 @@ public static long measureText(
     return YogaMeasureOutput.make(widthInSP, heightInSP);
   }
 
-  public static WritableArray measureLines(
+  public static WritableMap measureLines(
       @NonNull Context context,
       ReadableMap attributedString,
       ReadableMap paragraphAttributes,
-      float width) {
+      float width,
+      MapBuffer textLayoutRegions) {
     Spannable text = getOrCreateSpannableForText(context, attributedString, null);
     BoringLayout.Metrics boring = BoringLayout.isBoring(text, sTextPaintInstance);
 
@@ -592,7 +595,7 @@ public static WritableArray measureLines(
             includeFontPadding,
             textBreakStrategy,
             hyphenationFrequency);
-    return FontMetricsUtil.getFontMetrics(text, layout, sTextPaintInstance, context);
+    return FontMetricsUtil.getFontMetrics(text, layout, sTextPaintInstance, context, textLayoutRegions);
   }
 
   // TODO T31905686: This class should be private
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManagerMapBuffer.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManagerMapBuffer.java
index ecb7f030f2b046..759e9c1a230a70 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManagerMapBuffer.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManagerMapBuffer.java
@@ -27,7 +27,8 @@
 import com.facebook.common.logging.FLog;
 import com.facebook.react.bridge.ReactNoCrashSoftException;
 import com.facebook.react.bridge.ReactSoftExceptionLogger;
-import com.facebook.react.bridge.WritableArray;
+import com.facebook.react.bridge.ReadableArray;
+import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.common.build.ReactBuildConfig;
 import com.facebook.react.common.mapbuffer.MapBuffer;
 import com.facebook.react.uimanager.PixelUtil;
@@ -581,11 +582,12 @@ public static long measureText(
     return YogaMeasureOutput.make(widthInSP, heightInSP);
   }
 
-  public static WritableArray measureLines(
+  public static WritableMap measureLines(
       @NonNull Context context,
       MapBuffer attributedString,
       MapBuffer paragraphAttributes,
-      float width) {
+      float width,
+      MapBuffer textLayoutRegions) {
 
     Spannable text = getOrCreateSpannableForText(context, attributedString, null);
     BoringLayout.Metrics boring = BoringLayout.isBoring(text, sTextPaintInstance);
@@ -610,7 +612,8 @@ public static WritableArray measureLines(
             includeFontPadding,
             textBreakStrategy,
             hyphenationFrequency);
-    return FontMetricsUtil.getFontMetrics(text, layout, sTextPaintInstance, context);
+
+    return FontMetricsUtil.getFontMetrics(text, layout, sTextPaintInstance, context, textLayoutRegions);
   }
 
   // TODO T31905686: This class should be private
diff --git a/packages/react-native/ReactCommon/react/renderer/attributedstring/conversions.h b/packages/react-native/ReactCommon/react/renderer/attributedstring/conversions.h
index 26379f41e98b9b..e4c895090d4557 100644
--- a/packages/react-native/ReactCommon/react/renderer/attributedstring/conversions.h
+++ b/packages/react-native/ReactCommon/react/renderer/attributedstring/conversions.h
@@ -21,7 +21,9 @@
 #include <react/renderer/core/conversions.h>
 #include <react/renderer/core/graphicsConversions.h>
 #include <react/renderer/core/propsConversions.h>
+#include <react/renderer/textlayoutmanager/TextMeasureCache.h>
 #include <cmath>
+#include <vector>
 
 #ifdef ANDROID
 #include <react/renderer/mapbuffer/MapBuffer.h>
@@ -828,6 +830,30 @@ inline void fromRawValue(
   result = HyphenationFrequency::None;
 }
 
+inline void fromRawValue(
+    const PropsParserContext &context,
+    const RawValue &value,
+    TextLayoutRegions &result) {
+  react_native_expect(value.hasType<std::vector<std::vector<int>>>());
+  if (value.hasType<std::vector<std::vector<int>>>()) {
+    auto regions = std::vector<std::vector<int>>{value};
+    for (const auto &region : regions) {
+      if (region.size() == 2) {
+        std::vector<int> chunks;
+        for (const auto &chunk : region) {
+          chunks.push_back(chunk);
+        }
+        result.push_back(chunks);
+      } else {
+        LOG(ERROR) << "Unsupported TextLayoutRegion value";
+        react_native_expect(false);
+      }
+    }
+  } else {
+    LOG(ERROR) << "Unsupported TextLayoutRegions type";
+  }
+}
+
 inline ParagraphAttributes convertRawProp(
     const PropsParserContext &context,
     RawProps const &rawProps,
@@ -1306,6 +1332,24 @@ inline MapBuffer toMapBuffer(const AttributedString &attributedString) {
   return builder.build();
 }
 
+inline MapBuffer toMapBuffer(const TextLayoutRegions &textLayoutRegions) {
+  auto regionsBuilder = MapBufferBuilder();
+  unsigned regionIdx = 0;
+
+  for (const auto &region : textLayoutRegions) {
+      unsigned chunkIdx = 0;
+      auto chunksBuilder = MapBufferBuilder();
+      for (const auto &chunk : region) {
+          chunksBuilder.putInt(chunkIdx, chunk);
+          ++chunkIdx;
+      }
+      regionsBuilder.putMapBuffer(regionIdx, chunksBuilder.build());
+      ++regionIdx;
+  }
+
+  return regionsBuilder.build();
+}
+
 #endif
 
 } // namespace react
diff --git a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.cpp b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.cpp
index 3ae6e664598cd8..d25f43c8043b8f 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.cpp
@@ -11,9 +11,11 @@ namespace facebook::react {
 
 static jsi::Value linesMeasurementsPayload(
     jsi::Runtime &runtime,
-    LinesMeasurements const &linesMeasurements) {
+    LinesMeasurements const &linesMeasurements,
+    RegionsMeasurements const &regionsMeasurements) {
   auto payload = jsi::Object(runtime);
   auto lines = jsi::Array(runtime, linesMeasurements.size());
+  auto regions = jsi::Array(runtime, regionsMeasurements.size());
 
   for (size_t i = 0; i < linesMeasurements.size(); ++i) {
     auto const &lineMeasurement = linesMeasurements[i];
@@ -29,24 +31,40 @@ static jsi::Value linesMeasurementsPayload(
     jsiLine.setProperty(runtime, "xHeight", lineMeasurement.xHeight);
     lines.setValueAtIndex(runtime, i, jsiLine);
   }
-
+  
+  for (size_t i = 0; i < regionsMeasurements.size(); ++i) {
+    auto const &regionMeasurement = regionsMeasurements[i];
+    auto jsiRegion = jsi::Object(runtime);
+    jsiRegion.setProperty(runtime, "text", regionMeasurement.text);
+    jsiRegion.setProperty(runtime, "x", regionMeasurement.frame.origin.x);
+    jsiRegion.setProperty(runtime, "y", regionMeasurement.frame.origin.y);
+    jsiRegion.setProperty(runtime, "width", regionMeasurement.frame.size.width);
+    jsiRegion.setProperty(runtime, "height", regionMeasurement.frame.size.height);
+    jsiRegion.setProperty(runtime, "region", regionMeasurement.region);
+    jsiRegion.setProperty(runtime, "line", regionMeasurement.line);
+    regions.setValueAtIndex(runtime, i, jsiRegion);
+  }
+  
   payload.setProperty(runtime, "lines", lines);
+  payload.setProperty(runtime, "regions", regions);
 
   return payload;
 }
 
 void ParagraphEventEmitter::onTextLayout(
-    LinesMeasurements const &linesMeasurements) const {
+    LinesMeasurements const &linesMeasurements,
+    RegionsMeasurements const &regionsMeasurements) const {
   {
     std::lock_guard<std::mutex> guard(linesMeasurementsMutex_);
     if (linesMeasurementsMetrics_ == linesMeasurements) {
       return;
     }
     linesMeasurementsMetrics_ = linesMeasurements;
+    regionsMeasurementsMetrics_ = regionsMeasurements;
   }
 
-  dispatchEvent("textLayout", [linesMeasurements](jsi::Runtime &runtime) {
-    return linesMeasurementsPayload(runtime, linesMeasurements);
+  dispatchEvent("textLayout", [linesMeasurements, regionsMeasurements](jsi::Runtime &runtime) {
+    return linesMeasurementsPayload(runtime, linesMeasurements, regionsMeasurements);
   });
 }
 
diff --git a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.h b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.h
index c7e306d75edcd9..c9a044f4da3d95 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphEventEmitter.h
@@ -17,11 +17,12 @@ class ParagraphEventEmitter : public ViewEventEmitter {
  public:
   using ViewEventEmitter::ViewEventEmitter;
 
-  void onTextLayout(LinesMeasurements const &linesMeasurements) const;
+  void onTextLayout(LinesMeasurements const &linesMeasurements, RegionsMeasurements const &regionsMeasurements) const;
 
  private:
   mutable std::mutex linesMeasurementsMutex_;
   mutable LinesMeasurements linesMeasurementsMetrics_;
+  mutable RegionsMeasurements regionsMeasurementsMetrics_;
 };
 
 } // namespace react
diff --git a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.cpp b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.cpp
index 1f4cbc4a4974ee..5625731d9d618a 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.cpp
@@ -60,12 +60,13 @@ TextMeasurement ParagraphLayoutManager::measure(
   }
 }
 
-LinesMeasurements ParagraphLayoutManager::measureLines(
+TextLayoutMeasurements ParagraphLayoutManager::measureLines(
     AttributedString const &attributedString,
     ParagraphAttributes const &paragraphAttributes,
-    Size size) const {
+    Size size,
+    TextLayoutRegions textLayoutRegions) const {
   return textLayoutManager_->measureLines(
-      attributedString, paragraphAttributes, size);
+      attributedString, paragraphAttributes, size, textLayoutRegions);
 }
 
 void ParagraphLayoutManager::setTextLayoutManager(
diff --git a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.h b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.h
index d262db62b8c9ee..ce72c9c1372bfc 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphLayoutManager.h
@@ -28,10 +28,11 @@ class ParagraphLayoutManager {
       ParagraphAttributes const &paragraphAttributes,
       LayoutConstraints layoutConstraints) const;
 
-  LinesMeasurements measureLines(
+  TextLayoutMeasurements measureLines(
       AttributedString const &attributedString,
       ParagraphAttributes const &paragraphAttributes,
-      Size size) const;
+      Size size,
+      TextLayoutRegions textLayoutRegions) const;
 
   void setTextLayoutManager(
       std::shared_ptr<TextLayoutManager const> textLayoutManager) const;
diff --git a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.cpp b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.cpp
index 242567dc4b6e63..734815ab4a70a3 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.cpp
@@ -39,6 +39,14 @@ ParagraphProps::ParagraphProps(
                                                        "selectable",
                                                        sourceProps.isSelectable,
                                                        false)),
+      textLayoutRegions(
+          CoreFeatures::enablePropIteratorSetter ? sourceProps.textLayoutRegions
+                                                 : convertRawProp(
+                                                       context,
+                                                       rawProps,
+                                                       "textLayoutRegions",
+                                                       sourceProps.textLayoutRegions,
+                                                       {})),
       onTextLayout(
           CoreFeatures::enablePropIteratorSetter ? sourceProps.onTextLayout
                                                  : convertRawProp(
@@ -123,6 +131,7 @@ void ParagraphProps::setProp(
   switch (hash) {
     RAW_SET_PROP_SWITCH_CASE_BASIC(isSelectable);
     RAW_SET_PROP_SWITCH_CASE_BASIC(onTextLayout);
+    RAW_SET_PROP_SWITCH_CASE_BASIC(textLayoutRegions);
   }
 
   /*
diff --git a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.h b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.h
index 86a9224c3e193f..b32ad28f61a169 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphProps.h
@@ -15,6 +15,7 @@
 #include <react/renderer/components/view/ViewProps.h>
 #include <react/renderer/core/Props.h>
 #include <react/renderer/core/PropsParserContext.h>
+#include <react/renderer/textlayoutmanager/TextMeasureCache.h>
 
 namespace facebook {
 namespace react {
@@ -51,6 +52,11 @@ class ParagraphProps : public ViewProps, public BaseTextProps {
    */
   bool isSelectable{};
 
+  /*
+   * Defines text layout tracking strategy.
+   */
+  TextLayoutRegions textLayoutRegions{};
+
   bool onTextLayout{};
 
 #pragma mark - DebugStringConvertible
diff --git a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphShadowNode.cpp b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphShadowNode.cpp
index 17cb7dd34ad1c1..42d4e344f499b1 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphShadowNode.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/components/text/ParagraphShadowNode.cpp
@@ -158,13 +158,15 @@ void ParagraphShadowNode::layout(LayoutContext layoutContext) {
 
   auto measurement = getStateData().paragraphLayoutManager.measure(
       content.attributedString, content.paragraphAttributes, layoutConstraints);
-
+  
   if (getConcreteProps().onTextLayout) {
-    auto linesMeasurements = getStateData().paragraphLayoutManager.measureLines(
+    auto textLayoutMeasurements = getStateData().paragraphLayoutManager.measureLines(
         content.attributedString,
         content.paragraphAttributes,
-        measurement.size);
-    getConcreteEventEmitter().onTextLayout(linesMeasurements);
+        measurement.size,
+        getConcreteProps().textLayoutRegions);
+    
+    getConcreteEventEmitter().onTextLayout(textLayoutMeasurements.linesMeasurements, textLayoutMeasurements.regionsMeasurements);
   }
 
   if (content.attachments.empty()) {
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.cpp b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.cpp
index 03558aad542270..f62f692c0375cc 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.cpp
@@ -65,4 +65,33 @@ bool LineMeasurement::operator==(LineMeasurement const &rhs) const {
              rhs.xHeight);
 }
 
+RegionMeasurement::RegionMeasurement(
+    std::string text,
+    Rect frame,
+    int region,
+    int line)
+    : text(std::move(text)),
+      frame(frame),
+      region(region),
+      line(line) {}
+
+RegionMeasurement::RegionMeasurement(folly::dynamic const &data)
+    : text(data.getDefault("text", "").getString()),
+      frame(rectFromDynamic(data)),
+      region(data.getDefault("region", 0).getInt()),
+      line(data.getDefault("line", 0).getInt()){}
+
+bool RegionMeasurement::operator==(RegionMeasurement const &rhs) const {
+  return std::tie(
+             this->text,
+             this->frame,
+             this->region,
+             this->line) ==
+      std::tie(
+             rhs.text,
+             rhs.frame,
+             rhs.region,
+             rhs.line);
+}
+
 } // namespace facebook::react
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.h b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.h
index 6eb4cdcf1bf59c..36e64c51958a30 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.h
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/TextMeasureCache.h
@@ -38,7 +38,33 @@ struct LineMeasurement {
   bool operator==(LineMeasurement const &rhs) const;
 };
 
+struct RegionMeasurement {
+  std::string text;
+  Rect frame;
+  int region;
+  int line;
+
+  RegionMeasurement(
+      std::string text,
+      Rect frame,
+      int region,
+      int line
+  );
+
+  RegionMeasurement(folly::dynamic const &data);
+
+  bool operator==(RegionMeasurement const &rhs) const;
+};
+
 using LinesMeasurements = std::vector<LineMeasurement>;
+using RegionsMeasurements = std::vector<RegionMeasurement>;
+
+using TextLayoutRegions = std::vector<std::vector<int>>;
+
+struct TextLayoutMeasurements {
+  LinesMeasurements linesMeasurements;
+  RegionsMeasurements regionsMeasurements;
+};
 
 /*
  * Describes a result of text measuring.
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.cpp b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.cpp
index e39f6712784f26..04e31a51a7eb12 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.cpp
@@ -226,45 +226,61 @@ TextMeasurement TextLayoutManager::measureCachedSpannableById(
   return TextMeasurement{size, attachments};
 }
 
-LinesMeasurements TextLayoutManager::measureLines(
+TextLayoutMeasurements TextLayoutManager::measureLines(
     AttributedString const &attributedString,
     ParagraphAttributes const &paragraphAttributes,
-    Size size) const {
+    Size size,
+    TextLayoutRegions textLayoutRegions) const {
   const jni::global_ref<jobject> &fabricUIManager =
       contextContainer_->at<jni::global_ref<jobject>>("FabricUIManager");
   static auto measureLines =
       jni::findClassStatic("com/facebook/react/fabric/FabricUIManager")
-          ->getMethod<NativeArray::javaobject(
+          ->getMethod<NativeMap::javaobject(
               JReadableMapBuffer::javaobject,
               JReadableMapBuffer::javaobject,
               jfloat,
-              jfloat)>("measureLinesMapBuffer");
+              jfloat,
+              JReadableMapBuffer::javaobject)>("measureLinesMapBuffer");
 
   auto attributedStringMB =
       JReadableMapBuffer::createWithContents(toMapBuffer(attributedString));
   auto paragraphAttributesMB =
       JReadableMapBuffer::createWithContents(toMapBuffer(paragraphAttributes));
+  auto textLayoutRegionsMB =
+      JReadableMapBuffer::createWithContents(toMapBuffer(textLayoutRegions));
 
-  auto array = measureLines(
+  auto object = measureLines(
       fabricUIManager,
       attributedStringMB.get(),
       paragraphAttributesMB.get(),
       size.width,
-      size.height);
+      size.height,
+      textLayoutRegionsMB.get());
 
-  auto dynamicArray = cthis(array)->consume();
+  auto dynamicObject = cthis(object)->consume();
   LinesMeasurements lineMeasurements;
-  lineMeasurements.reserve(dynamicArray.size());
+  lineMeasurements.reserve(dynamicObject.getDefault("lines").size());
+  RegionsMeasurements regionsMeasurements;
+  regionsMeasurements.reserve(dynamicObject.getDefault("regions").size());
 
-  for (auto const &data : dynamicArray) {
+  for (auto const &data : dynamicObject.getDefault("lines")) {
     lineMeasurements.push_back(LineMeasurement(data));
   }
 
+  for (auto const &data : dynamicObject.getDefault("regions")) {
+      regionsMeasurements.push_back(RegionMeasurement(data));
+  }
+
   // Explicitly release smart pointers to free up space faster in JNI tables
   attributedStringMB.reset();
   paragraphAttributesMB.reset();
 
-  return lineMeasurements;
+  TextLayoutMeasurements textLayoutMeasurements = {
+      lineMeasurements,
+      regionsMeasurements,
+  };
+
+  return textLayoutMeasurements;
 }
 
 TextMeasurement TextLayoutManager::doMeasure(
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.h b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.h
index 0f5e070b942422..ce0b330f6d7e01 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.h
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/android/react/renderer/textlayoutmanager/TextLayoutManager.h
@@ -67,10 +67,11 @@ class TextLayoutManager {
    * Measures lines of `attributedString` using native text rendering
    * infrastructure.
    */
-  LinesMeasurements measureLines(
+  TextLayoutMeasurements measureLines(
       AttributedString const &attributedString,
       ParagraphAttributes const &paragraphAttributes,
-      Size size) const;
+      Size size,
+      TextLayoutRegions textLayoutRegions) const;
 
   /*
    * Returns an opaque pointer to platform-specific TextLayoutManager.
@@ -89,10 +90,11 @@ class TextLayoutManager {
       ParagraphAttributes const &paragraphAttributes,
       LayoutConstraints layoutConstraints) const;
 
-  LinesMeasurements measureLinesMapBuffer(
+  TextLayoutMeasurements measureLinesMapBuffer(
       AttributedString const &attributedString,
       ParagraphAttributes const &paragraphAttributes,
-      Size size) const;
+      Size size,
+      TextLayoutRegions textLayoutRegions) const;
 
   void *self_{};
   ContextContainer::Shared contextContainer_;
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.cpp b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.cpp
index 1284f3edfdd91a..5d04944ee056b8 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.cpp
@@ -29,10 +29,11 @@ TextMeasurement TextLayoutManager::measure(
   return TextMeasurement{{0, 0}, attachments};
 }
 
-LinesMeasurements TextLayoutManager::measureLines(
+TextLayoutMeasurements TextLayoutManager::measureLines(
     AttributedString attributedString,
     ParagraphAttributes paragraphAttributes,
-    Size size) const {
+    Size size,
+    TextLayoutRegions textLayoutRegions) const {
   return {};
 };
 
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.h b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.h
index cb2b9ebcf0a80c..db44f4cbf40464 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.h
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/cxx/TextLayoutManager.h
@@ -43,10 +43,11 @@ class TextLayoutManager {
    * Measures lines of `attributedString` using native text rendering
    * infrastructure.
    */
-  LinesMeasurements measureLines(
+  TextLayoutMeasurements measureLines(
       AttributedString attributedString,
       ParagraphAttributes paragraphAttributes,
-      Size size) const;
+      Size size,
+      TextLayoutRegions textLayoutRegions) const;
 
   /*
    * Returns an opaque pointer to platform-specific TextLayoutManager.
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.h b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.h
index b0d906ca10cea8..dbef4d4815d084 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.h
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.h
@@ -45,10 +45,10 @@ using RCTTextLayoutFragmentEnumerationBlock =
                        frame:(CGRect)frame
                  textStorage:(NSTextStorage *_Nullable)textStorage;
 
-- (facebook::react::LinesMeasurements)getLinesForAttributedString:(facebook::react::AttributedString)attributedString
-                                              paragraphAttributes:
-                                                  (facebook::react::ParagraphAttributes)paragraphAttributes
-                                                             size:(CGSize)size;
+- (facebook::react::TextLayoutMeasurements)getLinesForAttributedString:(facebook::react::AttributedString)attributedString
+                                                  paragraphAttributes:(facebook::react::ParagraphAttributes)paragraphAttributes
+                                                                 size:(CGSize)size
+                                                     textLayoutRegions:(NSArray*)textLayoutRegions;
 
 - (facebook::react::SharedEventEmitter)
     getEventEmitterWithAttributeString:(facebook::react::AttributedString)attributedString
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm
index fc83b1fbb21f08..5e392bfc9ef978 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTTextLayoutManager.mm
@@ -120,9 +120,10 @@ - (void)drawAttributedString:(AttributedString)attributedString
 #endif
 }
 
-- (LinesMeasurements)getLinesForAttributedString:(AttributedString)attributedString
-                             paragraphAttributes:(ParagraphAttributes)paragraphAttributes
-                                            size:(CGSize)size
+- (TextLayoutMeasurements)getLinesForAttributedString:(AttributedString)attributedString
+                                 paragraphAttributes:(ParagraphAttributes)paragraphAttributes
+                                                size:(CGSize)size
+                                    textLayoutRegions:(NSArray*)textLayoutRegions
 {
   NSTextStorage *textStorage = [self textStorageForAttributesString:attributedString
                                                 paragraphAttributes:paragraphAttributes
@@ -132,8 +133,11 @@ - (LinesMeasurements)getLinesForAttributedString:(AttributedString)attributedStr
 
   NSRange glyphRange = [layoutManager glyphRangeForTextContainer:textContainer];
 
+  __block int currentLine = 0;
   std::vector<LineMeasurement> paragraphLines{};
+  std::vector<RegionMeasurement> regionsMeasurements{};
   auto blockParagraphLines = &paragraphLines;
+  auto blockRegionsMeasurements = &regionsMeasurements;
 
   [layoutManager enumerateLineFragmentsForGlyphRange:glyphRange
                                           usingBlock:^(
@@ -144,24 +148,56 @@ - (LinesMeasurements)getLinesForAttributedString:(AttributedString)attributedStr
                                               BOOL *_Nonnull stop) {
                                             NSRange range = [layoutManager characterRangeForGlyphRange:lineGlyphRange
                                                                                       actualGlyphRange:nil];
-                                            NSString *renderedString = [textStorage.string substringWithRange:range];
+                                            NSString *renderedLineString = [textStorage.string substringWithRange:range];
                                             UIFont *font = [[textStorage attributedSubstringFromRange:range]
                                                      attribute:NSFontAttributeName
                                                        atIndex:0
                                                 effectiveRange:nil];
-                                            auto rect = facebook::react::Rect{
+                                            auto lineRect = facebook::react::Rect{
                                                 facebook::react::Point{usedRect.origin.x, usedRect.origin.y},
                                                 facebook::react::Size{usedRect.size.width, usedRect.size.height}};
+                                            
+                                            [textLayoutRegions enumerateObjectsUsingBlock:^(id _Nonnull textLayoutRegion, NSUInteger regionIdx, BOOL * _Nonnull stop) {
+                                              auto from = [[textLayoutRegion firstObject] integerValue];
+                                              auto to = [[textLayoutRegion lastObject] integerValue] - from;
+                                              NSRange lineRange = NSIntersectionRange(lineGlyphRange, NSMakeRange(from, to));
+
+                                              if (lineRange.location == 0 && lineRange.length == 0) {
+                                                return;
+                                              }
+                                              
+                                              [layoutManager enumerateEnclosingRectsForGlyphRange:lineRange
+                                                                         withinSelectedGlyphRange:lineRange
+                                                                                  inTextContainer:usedTextContainer
+                                                                                       usingBlock:^(CGRect enclosingRect, __unused BOOL *anotherStop) {
+                                                NSString *renderedRegionString = [textStorage.string substringWithRange:lineRange];
+                                                auto regionRect = facebook::react::Rect{
+                                                    facebook::react::Point{enclosingRect.origin.x, enclosingRect.origin.y},
+                                                    facebook::react::Size{enclosingRect.size.width, enclosingRect.size.height}};
+                                                auto region = RegionMeasurement{
+                                                  std::string([renderedRegionString UTF8String]),
+                                                  regionRect,
+                                                  (int)regionIdx,
+                                                  currentLine
+                                                };
+                                                blockRegionsMeasurements->push_back(region);
+                                              }];
+                                            }];
+
                                             auto line = LineMeasurement{
-                                                std::string([renderedString UTF8String]),
-                                                rect,
+                                                std::string([renderedLineString UTF8String]),
+                                                lineRect,
                                                 -font.descender,
                                                 font.capHeight,
                                                 font.ascender,
                                                 font.xHeight};
                                             blockParagraphLines->push_back(line);
+                                            currentLine += 1;
                                           }];
-  return paragraphLines;
+
+  TextLayoutMeasurements textLayoutMeasurements = {paragraphLines, regionsMeasurements};
+  
+  return textLayoutMeasurements;
 }
 
 - (NSTextStorage *)textStorageForAttributesString:(AttributedString)attributedString
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.h b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.h
index 095fae58850b8b..16a011175bc64c 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.h
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.h
@@ -40,10 +40,11 @@ class TextLayoutManager {
    * Measures lines of `attributedString` using native text rendering
    * infrastructure.
    */
-  LinesMeasurements measureLines(
+  TextLayoutMeasurements measureLines(
       AttributedString attributedString,
       ParagraphAttributes paragraphAttributes,
-      Size size) const;
+      Size size,
+      TextLayoutRegions textLayoutRegions) const;
 
   std::shared_ptr<void> getHostTextStorage(
       AttributedString attributedString,
diff --git a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.mm b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.mm
index 4f2e8719565345..d3b335316bf3a8 100644
--- a/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.mm
+++ b/packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/TextLayoutManager.mm
@@ -105,15 +105,27 @@
   return measurement;
 }
 
-LinesMeasurements TextLayoutManager::measureLines(
+TextLayoutMeasurements TextLayoutManager::measureLines(
     AttributedString attributedString,
     ParagraphAttributes paragraphAttributes,
-    Size size) const
+    Size size,
+    TextLayoutRegions textLayoutRegions) const
 {
+  id regions = [NSMutableArray new];
+
+  for (auto const &textLayoutRegion : textLayoutRegions) {
+    id region = [NSMutableArray new];
+    for (auto const &chunk : textLayoutRegion) {
+      [region addObject:[NSNumber numberWithInteger:chunk]];
+    }
+    [regions addObject:region];
+  }
+
   RCTTextLayoutManager *textLayoutManager = (RCTTextLayoutManager *)unwrapManagedObject(self_);
   return [textLayoutManager getLinesForAttributedString:attributedString
                                     paragraphAttributes:paragraphAttributes
-                                                   size:{size.width, size.height}];
+                                                   size:{size.width, size.height}
+                                      textLayoutRegions:regions];
 }
 
 } // namespace react
diff --git a/packages/rn-tester/js/examples/Layout/LayoutEventsExample.js b/packages/rn-tester/js/examples/Layout/LayoutEventsExample.js
index 016b0f6193ef9d..250e65cea96980 100644
--- a/packages/rn-tester/js/examples/Layout/LayoutEventsExample.js
+++ b/packages/rn-tester/js/examples/Layout/LayoutEventsExample.js
@@ -18,8 +18,11 @@ const {
   StyleSheet,
   Text,
   View,
+  ScrollView,
 } = require('react-native');
 
+import type {TextLayoutEvent} from 'react-native/Libraries/Types/CoreEventTypes';
+
 import type {
   ViewLayout,
   ViewLayoutEvent,
@@ -31,6 +34,7 @@ type State = {
   extraText?: string,
   imageLayout?: ViewLayout,
   textLayout?: ViewLayout,
+  textLayoutRegions?: TextLayoutEvent['nativeEvent']['regions'],
   viewLayout?: ViewLayout,
   viewStyle: {|margin: number|},
   ...
@@ -76,6 +80,11 @@ class LayoutEventExample extends React.Component<Props, State> {
     this.setState({textLayout: e.nativeEvent.layout});
   };
 
+  onTextRegionsLayout = (e: TextLayoutEvent) => {
+    console.log('received text layout regions event\n', e.nativeEvent);
+    this.setState({textLayoutRegions: e.nativeEvent.regions});
+  };
+
   onImageLayout = (e: ViewLayoutEvent) => {
     console.log('received image layout event\n', e.nativeEvent);
     this.setState({imageLayout: e.nativeEvent.layout});
@@ -85,8 +94,10 @@ class LayoutEventExample extends React.Component<Props, State> {
     const viewStyle = [styles.view, this.state.viewStyle];
     const textLayout = this.state.textLayout || {width: '?', height: '?'};
     const imageLayout = this.state.imageLayout || {x: '?', y: '?'};
+    const textRegions = this.state.textLayoutRegions || [];
+
     return (
-      <View style={this.state.containerStyle}>
+      <ScrollView style={this.state.containerStyle}>
         <Text>
           layout events are called on mount and whenever layout is recalculated.
           Note that the layout event will typically be received{' '}
@@ -124,7 +135,43 @@ class LayoutEventExample extends React.Component<Props, State> {
             Image x/y: {imageLayout.x}/{imageLayout.y}
           </Text>
         </View>
-      </View>
+
+        <View style={viewStyle}>
+          <Text>
+            TextLayout Regions:{' '}
+            {
+              /* $FlowFixMe[incompatible-type] (>=0.95.0 site=react_native_fb)
+               * This comment suppresses an error found when Flow v0.95 was
+               * deployed. To see the error, delete this comment and run Flow.
+               */
+              // $FlowFixMe[unsafe-addition]
+              JSON.stringify(textRegions, null, '  ') + '\n\n'
+            }
+          </Text>
+          <View>
+            {textRegions.map((region, index) => {
+              const regionStyle = {
+                width: region.width,
+                height: region.height,
+                top: region.y,
+                left: region.x,
+              };
+              return (
+                <View key={index} style={[regionStyle, styles.highlighted]} />
+              );
+            })}
+            <Text
+              onTextLayout={this.onTextRegionsLayout}
+              textLayoutRegions={[[0, 111]]}
+              style={styles.text}>
+              Lorem Ipsum is simply dummy text of the printing and typesetting
+              industry. Lorem Ipsum has been the industry's standard dummy text
+              ever since the 1500s, when an unknown printer took a galley of
+              type and scrambled it to make a type specimen book
+            </Text>
+          </View>
+        </View>
+      </ScrollView>
     );
   }
 }
@@ -140,6 +187,7 @@ const styles = StyleSheet.create({
     alignSelf: 'flex-start',
     borderColor: 'rgba(0, 0, 255, 0.2)',
     borderWidth: 0.5,
+    borderRadius: 4,
   },
   image: {
     width: 50,
@@ -153,6 +201,10 @@ const styles = StyleSheet.create({
   italicText: {
     fontStyle: 'italic',
   },
+  highlighted: {
+    backgroundColor: 'red',
+    position: 'absolute',
+  },
 });
 
 exports.title = 'Layout Events';