diff --git a/.github/workflows/check-codeowners.yml b/.github/workflows/check-codeowners.yml
new file mode 100644
index 0000000..c8716cc
--- /dev/null
+++ b/.github/workflows/check-codeowners.yml
@@ -0,0 +1,16 @@
+name: Check for CODEOWNERS
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Require CODEOWNERS
+        run: test -f .github/CODEOWNERS
+