diff --git a/.github/workflows/external-pr-review-assignment.yml b/.github/workflows/external-pr-review-assignment.yml
new file mode 100644
index 00000000000..e96e157e8ce
--- /dev/null
+++ b/.github/workflows/external-pr-review-assignment.yml
@@ -0,0 +1,32 @@
+name: Assign reviewers for external PRs
+
+on:
+  pull_request_target:
+    types: [opened, ready_for_review, reopened]
+
+permissions:
+  pull-requests: write
+
+jobs:
+  assign-reviewers:
+    # The 'if' statement below will exclude Dependabot PRs and internal PRs
+    if: >
+      github.actor != 'dependabot[bot]' &&
+      !github.event.pull_request.draft &&
+      github.event.pull_request.author_association != 'MEMBER' &&
+      github.event.pull_request.author_association != 'OWNER' &&
+      github.event.pull_request.author_association != 'COLLABORATOR' &&
+      github.event.pull_request.head.repo.fork
+    runs-on: ubuntu-latest
+    # The job below will use the built-in "Request reviewers for a pull request" script to assign reviewers
+    steps:
+      - name: Assign reviewer from Bicep External Maintainers team
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.pulls.requestReviewers({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.payload.pull_request.number,
+              team_reviewers: ['bicep-external-maintainers']
+            })