diff --git a/apps/oxlint/conformance/init.sh b/apps/oxlint/conformance/init.sh
index 9e50eb6a8819b..868d955b8afe2 100755
--- a/apps/oxlint/conformance/init.sh
+++ b/apps/oxlint/conformance/init.sh
@@ -10,6 +10,7 @@ TESTING_LIBRARY_SHA="b8ef3772487a32c886cb5c338da2a144560a437b" # 7.15.4
 STORYBOOK_SHA="99aa48989f6798ae24d9867bc2b5fe6991a2e341" # v10.3.0-alpha.12
 PLAYWRIGHT_SHA="7e16bd565cfccd365a6a8f1f7f6fe29a1c868036" # v2.9.0
 CYPRESS_SHA="de98a5de648694518873ad85b41250e40a67be95" # v6.2.0
+MOCHA_SHA="1e5a3a1a9597ab54e5cc3d3fc58071009d0335d3" # v11.1.0
 
 # Shallow clone a repo at a specific commit, and `cd` into the cloned directory.
 # Git commands copied from `.github/scripts/clone-parallel.mjs`.
@@ -244,3 +245,16 @@ npm install
 
 # Return to `submodules` directory
 cd ..
+
+###############################################################################
+# Mocha
+###############################################################################
+
+# Clone `eslint-plugin-mocha` repo into `submodules/mocha`
+clone mocha https://github.com/lo1tuma/eslint-plugin-mocha.git "$MOCHA_SHA"
+
+# Install dependencies
+npm install
+
+# Return to `submodules` directory
+cd ..
diff --git a/apps/oxlint/conformance/snapshots/mocha.md b/apps/oxlint/conformance/snapshots/mocha.md
new file mode 100644
index 0000000000000..b59def13f0c1f
--- /dev/null
+++ b/apps/oxlint/conformance/snapshots/mocha.md
@@ -0,0 +1,54 @@
+# Conformance test results - mocha
+
+## Summary
+
+### Rules
+
+| Status            | Count | %      |
+| ----------------- | ----- | ------ |
+| Total rules       |    24 | 100.0% |
+| Fully passing     |    24 | 100.0% |
+| Partially passing |     0 |   0.0% |
+| Fully failing     |     0 |   0.0% |
+| Load errors       |     0 |   0.0% |
+| No tests run      |     0 |   0.0% |
+
+### Tests
+
+| Status      | Count | %      |
+| ----------- | ----- | ------ |
+| Total tests |   825 | 100.0% |
+| Passing     |   825 | 100.0% |
+| Failing     |     0 |   0.0% |
+| Skipped     |     0 |   0.0% |
+
+## Fully Passing Rules
+
+- `consistent-interface` (9 tests)
+- `consistent-spacing-between-blocks` (17 tests)
+- `handle-done-callback` (42 tests)
+- `max-top-level-suites` (37 tests)
+- `no-async-suite` (16 tests)
+- `no-empty-title` (51 tests)
+- `no-exclusive-tests` (44 tests)
+- `no-exports` (31 tests)
+- `no-global-tests` (40 tests)
+- `no-hooks-for-single-case` (35 tests)
+- `no-hooks` (29 tests)
+- `no-identical-title` (28 tests)
+- `no-mocha-arrows` (26 tests)
+- `no-nested-tests` (20 tests)
+- `no-pending-tests` (45 tests)
+- `no-return-and-callback` (44 tests)
+- `no-return-from-async` (27 tests)
+- `no-setup-in-describe` (65 tests)
+- `no-sibling-hooks` (32 tests)
+- `no-synchronous-tests` (45 tests)
+- `no-top-level-hooks` (31 tests)
+- `prefer-arrow-callback` (67 tests)
+- `valid-suite-title` (17 tests)
+- `valid-test-title` (27 tests)
+
+## Rules with Failures
+
+No rules with failures
diff --git a/apps/oxlint/conformance/src/groups/index.ts b/apps/oxlint/conformance/src/groups/index.ts
index 74973b5a15e47..994a608fd3dcd 100644
--- a/apps/oxlint/conformance/src/groups/index.ts
+++ b/apps/oxlint/conformance/src/groups/index.ts
@@ -9,6 +9,7 @@ import testingLibrary from "./testing_library.ts";
 import storybook from "./storybook.ts";
 import playwright from "./playwright.ts";
 import cypress from "./cypress.ts";
+import mocha from "./mocha.ts";
 
 export const TEST_GROUPS: TestGroup[] = [
   eslint,
@@ -20,4 +21,5 @@ export const TEST_GROUPS: TestGroup[] = [
   storybook,
   playwright,
   cypress,
+  mocha,
 ];
diff --git a/apps/oxlint/conformance/src/groups/mocha.ts b/apps/oxlint/conformance/src/groups/mocha.ts
new file mode 100644
index 0000000000000..6ea362a1c7030
--- /dev/null
+++ b/apps/oxlint/conformance/src/groups/mocha.ts
@@ -0,0 +1,19 @@
+import type { TestGroup } from "../index.ts";
+
+const group: TestGroup = {
+  name: "mocha",
+
+  submoduleName: "mocha",
+  testFilesDirPath: "source/rules",
+
+  transformTestFilename(filename: string) {
+    if (!filename.endsWith(".test.ts")) return null;
+    return filename.slice(0, -".test.ts".length);
+  },
+
+  ruleTesters: [{ specifier: "eslint", propName: "RuleTester" }],
+
+  parsers: [],
+};
+
+export default group;