diff --git a/.github/workflows/validate-pr-title.yml b/.github/workflows/validate-pr-title.yml
new file mode 100644
index 00000000..3d35cbf8
--- /dev/null
+++ b/.github/workflows/validate-pr-title.yml
@@ -0,0 +1,23 @@
+name: Validate PR Title
+
+on:
+  pull_request:
+    branches: [main]
+    types: [opened, edited, reopened, synchronize]
+
+permissions: {}
+
+jobs:
+  validate-pr-title:
+    name: Validate PR Title
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check conventional title
+        env:
+          PR_TITLE: ${{ github.event.pull_request.title }}
+        run: |
+          pattern='^(build|chore|ci|docs|feat|fix|perf|refactor|release|revert|style|test)(\([^()[:space:]]+\))?!?:[[:space:]][^[:space:]].*$'
+          if [[ ! "$PR_TITLE" =~ $pattern ]]; then
+            echo '::error::PR titles must use a supported Conventional Commit type.'
+            exit 1
+          fi