diff --git a/.github/workflows/pr-main-warning.yml b/.github/workflows/pr-main-warning.yml
deleted file mode 100644
index 57a6b9aca27c..000000000000
--- a/.github/workflows/pr-main-warning.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-name: PR Main Branch Warning
-on:
-  pull_request_target:
-    types: [opened]
-    branches:
-      - main
-
-permissions:
-  pull-requests: write
-
-jobs:
-  comment:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Add warning comment to PR targeting main
-        uses: actions/github-script@v7
-        with:
-          script: |
-            github.rest.issues.createComment({
-              issue_number: context.payload.pull_request.number,
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              body: `This PR is targeting \`main\`, which is now for .NET 11-facing work. If you intended to target .NET 10, either retarget this PR to \`release/10.0.1xx\` or make sure you backport the change to \`release/10.0.1xx\` after merging. See https://github.com/dotnet/sdk/issues/50394 for more details.`
-            })