diff --git a/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-async-arrow-non-simple-params-test.js b/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-async-arrow-non-simple-params-test.js
new file mode 100644
index 00000000000..1365556a96d
--- /dev/null
+++ b/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-async-arrow-non-simple-params-test.js
@@ -0,0 +1,115 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @noflow
+ */
+
+'use strict';
+
+const {transform} = require('../__mocks__/test-helpers');
+const fixHermesV1AsyncArrowNonSimpleParams = require('../fix-hermes-v1-async-arrow-non-simple-params');
+
+test('rewrites destructured object param with default to simple identifier', () => {
+  const code = `
+    const fn = async ({a = 1, b} = {}) => {
+      return await fetch(a + b);
+    };
+  `;
+
+  expect(transform(code, [fixHermesV1AsyncArrowNonSimpleParams]))
+    .toMatchInlineSnapshot(`
+    "const fn = async _p => {
+      var {
+        a = 1,
+        b
+      } = _p === undefined ? {} : _p;
+      return await fetch(a + b);
+    };"
+  `);
+});
+
+test('rewrites destructured array param to simple identifier', () => {
+  const code = `
+    const fn = async ([a, b]) => await Promise.resolve(a + b);
+  `;
+
+  expect(transform(code, [fixHermesV1AsyncArrowNonSimpleParams]))
+    .toMatchInlineSnapshot(`
+    "const fn = async _p => {
+      var [a, b] = _p;
+      return await Promise.resolve(a + b);
+    };"
+  `);
+});
+
+test('rewrites assignment-pattern param without enclosing destructure', () => {
+  const code = `
+    const fn = async (x = 5) => await use(x);
+  `;
+
+  expect(transform(code, [fixHermesV1AsyncArrowNonSimpleParams]))
+    .toMatchInlineSnapshot(`
+    "const fn = async _p => {
+      var x = _p === undefined ? 5 : _p;
+      return await use(x);
+    };"
+  `);
+});
+
+test('wraps body in inner async arrow when rest param is present', () => {
+  const code = `
+    const fn = async (...args) => await handle(args);
+  `;
+
+  expect(transform(code, [fixHermesV1AsyncArrowNonSimpleParams]))
+    .toMatchInlineSnapshot(`
+    "const fn = (...args) => (async () => {
+      return await handle(args);
+    })();"
+  `);
+});
+
+test('leaves async arrow with only simple identifier params alone', () => {
+  const code = `
+    const fn = async (a, b) => await fetch(a + b);
+  `;
+
+  expect(
+    transform(code, [fixHermesV1AsyncArrowNonSimpleParams]),
+  ).toMatchInlineSnapshot(`"const fn = async (a, b) => await fetch(a + b);"`);
+});
+
+test('leaves non-async arrow alone', () => {
+  const code = `
+    const fn = ({a = 1, b} = {}) => a + b;
+  `;
+
+  expect(transform(code, [fixHermesV1AsyncArrowNonSimpleParams]))
+    .toMatchInlineSnapshot(`
+    "const fn = ({
+      a = 1,
+      b
+    } = {}) => a + b;"
+  `);
+});
+
+test('handles multiple params mixing simple and complex', () => {
+  const code = `
+    const fn = async (a, {b}, c = 1) => await all(a, b, c);
+  `;
+
+  expect(transform(code, [fixHermesV1AsyncArrowNonSimpleParams]))
+    .toMatchInlineSnapshot(`
+    "const fn = async (a, _p, _p2) => {
+      var {
+        b
+      } = _p;
+      var c = _p2 === undefined ? 1 : _p2;
+      return await all(a, b, c);
+    };"
+  `);
+});
diff --git a/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-class-in-finally-test.js b/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-class-in-finally-test.js
new file mode 100644
index 00000000000..d3f6a6aec1a
--- /dev/null
+++ b/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-class-in-finally-test.js
@@ -0,0 +1,135 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @noflow
+ */
+
+'use strict';
+
+const {transform} = require('../__mocks__/test-helpers');
+const fixHermesV1ClassInFinally = require('../fix-hermes-v1-class-in-finally');
+
+test('wraps class declaration in finally block in IIFE', () => {
+  const code = `
+    function run() {
+      try {
+        risky();
+      } finally {
+        class Logger {
+          log() { console.log('done'); }
+        }
+        new Logger().log();
+      }
+    }
+  `;
+
+  expect(transform(code, [fixHermesV1ClassInFinally])).toMatchInlineSnapshot(`
+    "function run() {
+      try {
+        risky();
+      } finally {
+        var Logger = (() => {
+          class Logger {
+            log() {
+              console.log('done');
+            }
+          }
+          return Logger;
+        })();
+        new Logger().log();
+      }
+    }"
+  `);
+});
+
+test('wraps class expression in finally block in IIFE', () => {
+  const code = `
+    function run() {
+      try {
+        risky();
+      } finally {
+        const Logger = class {
+          log() {}
+        };
+        new Logger().log();
+      }
+    }
+  `;
+
+  expect(transform(code, [fixHermesV1ClassInFinally])).toMatchInlineSnapshot(`
+    "function run() {
+      try {
+        risky();
+      } finally {
+        const Logger = (() => class {
+          log() {}
+        })();
+        new Logger().log();
+      }
+    }"
+  `);
+});
+
+test('leaves class outside finally block alone', () => {
+  const code = `
+    function run() {
+      try {
+        class Inside {}
+        return new Inside();
+      } catch (e) {
+        class Caught {}
+        return new Caught();
+      }
+    }
+  `;
+
+  expect(transform(code, [fixHermesV1ClassInFinally])).toMatchInlineSnapshot(`
+    "function run() {
+      try {
+        class Inside {}
+        return new Inside();
+      } catch (e) {
+        class Caught {}
+        return new Caught();
+      }
+    }"
+  `);
+});
+
+test('leaves class declared at module scope alone', () => {
+  const code = `
+    class Module {}
+    new Module();
+  `;
+
+  expect(transform(code, [fixHermesV1ClassInFinally])).toMatchInlineSnapshot(`
+    "class Module {}
+    new Module();"
+  `);
+});
+
+test('does not enter nested function scope', () => {
+  const code = `
+    try {} finally {
+      function inner() {
+        class NestedFn {}
+        return new NestedFn();
+      }
+      inner();
+    }
+  `;
+
+  expect(transform(code, [fixHermesV1ClassInFinally])).toMatchInlineSnapshot(`
+    "try {} finally {
+      function inner() {
+        class NestedFn {}
+        return new NestedFn();
+      }
+      inner();
+    }"
+  `);
+});
diff --git a/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-super-in-object-accessor-test.js b/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-super-in-object-accessor-test.js
new file mode 100644
index 00000000000..1512c8b91e9
--- /dev/null
+++ b/packages/react-native-babel-preset/src/__tests__/fix-hermes-v1-super-in-object-accessor-test.js
@@ -0,0 +1,128 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @noflow
+ */
+
+'use strict';
+
+const {transform} = require('../__mocks__/test-helpers');
+const fixHermesV1SuperInObjectAccessor = require('../fix-hermes-v1-super-in-object-accessor');
+
+test('rewrites identifier-keyed object getter using super.x to computed string key', () => {
+  const code = `
+    const obj = {
+      get name() {
+        return super.name;
+      },
+    };
+  `;
+
+  expect(transform(code, [fixHermesV1SuperInObjectAccessor]))
+    .toMatchInlineSnapshot(`
+    "const obj = {
+      get [\\"name\\"]() {
+        return super.name;
+      }
+    };"
+  `);
+});
+
+test('rewrites identifier-keyed object setter using super.x to computed string key', () => {
+  const code = `
+    const obj = {
+      set value(v) {
+        super.value = v;
+      },
+    };
+  `;
+
+  expect(transform(code, [fixHermesV1SuperInObjectAccessor]))
+    .toMatchInlineSnapshot(`
+    "const obj = {
+      set [\\"value\\"](v) {
+        super.value = v;
+      }
+    };"
+  `);
+});
+
+test('leaves super inside class method alone', () => {
+  const code = `
+    class Child extends Parent {
+      get name() {
+        return super.name;
+      }
+    }
+  `;
+
+  expect(transform(code, [fixHermesV1SuperInObjectAccessor]))
+    .toMatchInlineSnapshot(`
+    "class Child extends Parent {
+      get name() {
+        return super.name;
+      }
+    }"
+  `);
+});
+
+test('leaves super inside regular object method alone', () => {
+  const code = `
+    const obj = {
+      run() {
+        return super.run();
+      },
+    };
+  `;
+
+  expect(transform(code, [fixHermesV1SuperInObjectAccessor]))
+    .toMatchInlineSnapshot(`
+    "const obj = {
+      run() {
+        return super.run();
+      }
+    };"
+  `);
+});
+
+test('leaves super() call alone', () => {
+  const code = `
+    class Child extends Parent {
+      constructor() {
+        super();
+      }
+    }
+  `;
+
+  expect(transform(code, [fixHermesV1SuperInObjectAccessor]))
+    .toMatchInlineSnapshot(`
+    "class Child extends Parent {
+      constructor() {
+        super();
+      }
+    }"
+  `);
+});
+
+test('skips already-computed accessor', () => {
+  const code = `
+    const obj = {
+      get [keyName]() {
+        return super.value;
+      },
+    };
+  `;
+
+  expect(transform(code, [fixHermesV1SuperInObjectAccessor]))
+    .toMatchInlineSnapshot(`
+    "const obj = {
+      get [keyName]() {
+        return super.value;
+      }
+    };"
+  `);
+});
diff --git a/packages/react-native-babel-preset/src/configs/main.js b/packages/react-native-babel-preset/src/configs/main.js
index 5ceeced5f42..fca192d519b 100644
--- a/packages/react-native-babel-preset/src/configs/main.js
+++ b/packages/react-native-babel-preset/src/configs/main.js
@@ -231,6 +231,21 @@ const getPreset = (src, options, babel) => {
               ...options.hermesParserOptions,
             },
           ],
+          // Hermes V1 native runtime workarounds. See each plugin file header
+          // for the matching facebook/hermes commit and the bug it patches.
+          ...(isHermesProfile
+            ? [
+                [require('../fix-hermes-v1-class-in-finally')],
+                [require('../fix-hermes-v1-super-in-object-accessor')],
+                ...(preserveAsync
+                  ? [
+                      [
+                        require('../fix-hermes-v1-async-arrow-non-simple-params'),
+                      ],
+                    ]
+                  : []),
+              ]
+            : []),
           [require('babel-plugin-transform-flow-enums')],
           ...(preserveBlockScoping
             ? []
diff --git a/packages/react-native-babel-preset/src/fix-hermes-v1-async-arrow-non-simple-params.js b/packages/react-native-babel-preset/src/fix-hermes-v1-async-arrow-non-simple-params.js
new file mode 100644
index 00000000000..9710c60e4d9
--- /dev/null
+++ b/packages/react-native-babel-preset/src/fix-hermes-v1-async-arrow-non-simple-params.js
@@ -0,0 +1,93 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @noflow
+ */
+
+'use strict';
+
+// Workaround for https://github.com/facebook/hermes/issues/1761.
+// Fixed in Hermes mainline by https://github.com/facebook/hermes/commit/68bfb3a48b31
+// (2025-09-11) but the bundled Hermes V1 in this version of React Native
+// (250829098.0.13, 2025-08-29 branch cut) predates the fix.
+//
+// Async arrow functions with non-simple parameters (destructured patterns,
+// defaults, rest) cause Hermes V1 to resolve `await` with `undefined` while
+// the function body continues executing in the background. This rewrites the
+// arrow into one with a simple identifier parameter and inline destructuring
+// so Hermes never sees the buggy shape.
+//
+// Ported from `babel-preset-expo` (https://github.com/expo/expo/pull/45601),
+// MIT licensed.
+
+module.exports = ({types: t}) => ({
+  name: 'fix-hermes-v1-async-arrow-non-simple-params',
+  visitor: {
+    ArrowFunctionExpression(path) {
+      const {node} = path;
+      if (!node.async || node.params.every(p => t.isIdentifier(p))) {
+        return;
+      }
+
+      // Hermes V1 rejects any rest param on async arrows. Wrap the body in
+      // a sync arrow that calls an inner async arrow with no params.
+      if (node.params.some(p => t.isRestElement(p))) {
+        const body = !t.isBlockStatement(node.body)
+          ? t.blockStatement([t.returnStatement(node.body)])
+          : node.body;
+        const innerAsync = t.arrowFunctionExpression([], body, true);
+        node.async = false;
+        node.body = t.callExpression(innerAsync, []);
+        return;
+      }
+
+      const newParams = [];
+      const init = [];
+      for (const param of node.params) {
+        if (t.isIdentifier(param)) {
+          newParams.push(param);
+          continue;
+        }
+
+        const sym = path.scope.generateUidIdentifier('p');
+        if (t.isAssignmentPattern(param)) {
+          newParams.push(sym);
+          init.push(
+            t.variableDeclaration('var', [
+              t.variableDeclarator(
+                param.left,
+                t.conditionalExpression(
+                  t.binaryExpression(
+                    '===',
+                    t.cloneNode(sym),
+                    t.identifier('undefined'),
+                  ),
+                  param.right,
+                  t.cloneNode(sym),
+                ),
+              ),
+            ]),
+          );
+        } else {
+          newParams.push(sym);
+          init.push(
+            t.variableDeclaration('var', [
+              t.variableDeclarator(param, t.cloneNode(sym)),
+            ]),
+          );
+        }
+      }
+
+      const body = !t.isBlockStatement(node.body)
+        ? t.blockStatement([t.returnStatement(node.body)])
+        : node.body;
+      body.body.unshift(...init);
+      node.params = newParams;
+      node.body = body;
+    },
+  },
+});
diff --git a/packages/react-native-babel-preset/src/fix-hermes-v1-class-in-finally.js b/packages/react-native-babel-preset/src/fix-hermes-v1-class-in-finally.js
new file mode 100644
index 00000000000..289aec9224a
--- /dev/null
+++ b/packages/react-native-babel-preset/src/fix-hermes-v1-class-in-finally.js
@@ -0,0 +1,97 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @noflow
+ */
+
+'use strict';
+
+// Workaround for the variable-caching-for-legacy-classes bug in Hermes V1.
+// Fixed in Hermes mainline by https://github.com/facebook/hermes/commit/1e94fbe0ebb4
+// (2026-02-12) but the bundled Hermes V1 in this version of React Native
+// (250829098.0.13, 2025-08-29 branch cut) predates the fix.
+//
+// Class declarations inside a `finally` block trip Hermes V1's variable
+// caching path. Wrap them in an IIFE so the class lives in its own function
+// scope and the cache miss never happens.
+//
+// Ported from `babel-preset-expo` (https://github.com/expo/expo/pull/45601),
+// MIT licensed.
+
+function isInFinalizerScope(path) {
+  let inner = path;
+  let parentPath = path.parentPath;
+  while (parentPath) {
+    const type = parentPath.node.type;
+    switch (type) {
+      case 'FunctionExpression':
+      case 'FunctionDeclaration':
+      case 'ArrowFunctionExpression':
+      case 'ObjectMethod':
+      case 'ClassMethod':
+      case 'ClassPrivateMethod':
+      case 'StaticBlock':
+        return false;
+      case 'TryStatement':
+        if (inner.key === 'finalizer') {
+          return true;
+        }
+        break;
+    }
+    inner = parentPath;
+    parentPath = parentPath.parentPath;
+  }
+  return false;
+}
+
+module.exports = ({types: t}) => ({
+  name: 'fix-hermes-v1-class-in-finally',
+  visitor: {
+    ClassDeclaration(path) {
+      const id = path.node.id;
+      if (
+        (path.node.decorators && path.node.decorators.length) ||
+        !id ||
+        !isInFinalizerScope(path)
+      ) {
+        return;
+      }
+
+      const inner = t.classDeclaration(
+        t.cloneNode(id),
+        path.node.superClass,
+        path.node.body,
+        [],
+      );
+
+      const arrow = t.arrowFunctionExpression(
+        [],
+        t.blockStatement([inner, t.returnStatement(t.cloneNode(id))]),
+      );
+
+      path.replaceWith(
+        t.variableDeclaration('var', [
+          t.variableDeclarator(t.cloneNode(id), t.callExpression(arrow, [])),
+        ]),
+      );
+      path.skip();
+    },
+
+    ClassExpression(path) {
+      if (
+        (path.node.decorators && path.node.decorators.length) ||
+        !isInFinalizerScope(path)
+      ) {
+        return;
+      }
+
+      const arrow = t.arrowFunctionExpression([], path.node);
+      path.replaceWith(t.callExpression(arrow, []));
+      path.skip();
+    },
+  },
+});
diff --git a/packages/react-native-babel-preset/src/fix-hermes-v1-super-in-object-accessor.js b/packages/react-native-babel-preset/src/fix-hermes-v1-super-in-object-accessor.js
new file mode 100644
index 00000000000..4d793ac6729
--- /dev/null
+++ b/packages/react-native-babel-preset/src/fix-hermes-v1-super-in-object-accessor.js
@@ -0,0 +1,74 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ * @noflow
+ */
+
+'use strict';
+
+// Workaround for the genFunctionExpression home-object bug in Hermes V1.
+// Fixed in Hermes mainline by https://github.com/facebook/hermes/commit/18a963465944
+// (2025-11-04) but the bundled Hermes V1 in this version of React Native
+// (250829098.0.13, 2025-08-29 branch cut) predates the fix.
+//
+// Object-literal getters and setters that use `super.x` lookups trip Hermes
+// V1's home-object path. Rewriting the accessor with a computed string key
+// avoids the buggy codegen.
+//
+// Ported from `babel-preset-expo` (https://github.com/expo/expo/pull/45601),
+// MIT licensed.
+
+function findEnclosingNonComputedObjectAccessor(path) {
+  let parentPath = path.parentPath;
+  while (parentPath) {
+    const node = parentPath.node;
+    const type = node.type;
+    switch (type) {
+      case 'ClassMethod':
+      case 'ClassPrivateMethod':
+      case 'FunctionExpression':
+      case 'FunctionDeclaration':
+      case 'StaticBlock':
+      case 'ClassProperty':
+      case 'ClassPrivateProperty':
+        return null;
+      case 'ObjectMethod':
+        if (!node.computed && (node.kind === 'get' || node.kind === 'set')) {
+          return node;
+        }
+        return null;
+    }
+    parentPath = parentPath.parentPath;
+  }
+  return null;
+}
+
+module.exports = ({types: t}) => ({
+  name: 'fix-hermes-v1-super-in-object-accessor',
+  visitor: {
+    Super(path) {
+      // Only `super.x` / `super[expr]` reach the buggy home-object path.
+      // `super()` lives only in derived class constructors and takes a
+      // different codepath.
+      const parent = path.parent;
+      if (parent.type !== 'MemberExpression' || parent.object !== path.node) {
+        return;
+      }
+
+      const accessor = findEnclosingNonComputedObjectAccessor(path);
+      if (accessor) {
+        const key = accessor.key;
+        if (key.type === 'Identifier') {
+          accessor.key = t.stringLiteral(key.name);
+        } else if (key.type !== 'StringLiteral') {
+          return;
+        }
+        accessor.computed = true;
+      }
+    },
+  },
+});
diff --git a/packages/react-native-babel-preset/src/index.js b/packages/react-native-babel-preset/src/index.js
index e785c975938..cd3575d6e75 100644
--- a/packages/react-native-babel-preset/src/index.js
+++ b/packages/react-native-babel-preset/src/index.js
@@ -41,6 +41,13 @@ module.exports.getCacheKey = () => {
     readFileSync(require.resolve('./configs/lazy-imports.js')),
     readFileSync(require.resolve('./passthrough-syntax-plugins.js')),
     readFileSync(require.resolve('./plugin-warn-on-deep-imports.js')),
+    readFileSync(
+      require.resolve('./fix-hermes-v1-async-arrow-non-simple-params.js'),
+    ),
+    readFileSync(require.resolve('./fix-hermes-v1-class-in-finally.js')),
+    readFileSync(
+      require.resolve('./fix-hermes-v1-super-in-object-accessor.js'),
+    ),
   ].forEach(part => key.update(part));
   cacheKey = key.digest('hex');
   return cacheKey;