diff --git a/.github/workflows/pr-auto-assign.yaml b/.github/workflows/pr-auto-assign.yaml
new file mode 100644
index 0000000000..fc11013d66
--- /dev/null
+++ b/.github/workflows/pr-auto-assign.yaml
@@ -0,0 +1,16 @@
+# Filtering pull requests is much easier when we can reliably guarantee
+# that the "Assignee" field is populated.
+name: PR Auto Assign
+
+on:
+  pull_request_target:
+    types: [ opened ]
+
+permissions:
+  pull-requests: write
+
+jobs:
+  assign-author:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: toshimaru/auto-author-assign@v1.6.2