diff --git a/.github/workflows/release-automation-reusable.yml b/.github/workflows/release-automation-reusable.yml
index d293783..f40442f 100644
--- a/.github/workflows/release-automation-reusable.yml
+++ b/.github/workflows/release-automation-reusable.yml
@@ -1515,7 +1515,7 @@ jobs:
             exit 0
           fi
 
-          SYNC_BRANCH="post-release/${RELEASE_TAG}"
+          SYNC_BRANCH="pr-to-main/${RELEASE_TAG}"
 
           # Create branch, stage, commit, push
           git checkout -b "$SYNC_BRANCH"
diff --git a/release_automation/docs/technical-architecture.md b/release_automation/docs/technical-architecture.md
index aa8ae40..47d03b9 100644
--- a/release_automation/docs/technical-architecture.md
+++ b/release_automation/docs/technical-architecture.md
@@ -503,7 +503,7 @@ Creates a sync PR to main after release publication.
 - Release-specific CHANGELOG: `CHANGELOG/CHANGELOG-rX.md` (X = cycle number from release tag)
 - README Release Information section update (between delimiters)
 
-**Branch:** `post-release/rX.Y` created from main.
+**Branch:** `pr-to-main/rX.Y` created from main.
 
 **Merge policy:** Human approval required (no auto-merge).
 
diff --git a/release_automation/scripts/post_release_syncer.py b/release_automation/scripts/post_release_syncer.py
index 887f4dc..b22df84 100644
--- a/release_automation/scripts/post_release_syncer.py
+++ b/release_automation/scripts/post_release_syncer.py
@@ -62,7 +62,7 @@ def create_sync_pr(
         Returns:
             SyncPRResult with PR details or error
         """
-        sync_branch = f"post-release/{release_tag}"
+        sync_branch = f"pr-to-main/{release_tag}"
 
         try:
             # Step 1: Create sync branch from main
diff --git a/release_automation/tests/test_post_release_syncer.py b/release_automation/tests/test_post_release_syncer.py
index a85b7ff..a9d54ec 100644
--- a/release_automation/tests/test_post_release_syncer.py
+++ b/release_automation/tests/test_post_release_syncer.py
@@ -117,7 +117,7 @@ def test_sync_changelog_success(self, syncer, mock_github_client):
 
         result = syncer._sync_changelog(
             "release-snapshot/r4.1-abc123",
-            "post-release/r4.1",
+            "pr-to-main/r4.1",
             "r4.1"
         )
 
@@ -125,7 +125,7 @@ def test_sync_changelog_success(self, syncer, mock_github_client):
         mock_github_client.update_file.assert_called_once()
         call_kwargs = mock_github_client.update_file.call_args.kwargs
         assert call_kwargs["path"] == "CHANGELOG/CHANGELOG-r4.md"
-        assert call_kwargs["branch"] == "post-release/r4.1"
+        assert call_kwargs["branch"] == "pr-to-main/r4.1"
 
     def test_sync_changelog_not_found(self, syncer, mock_github_client):
         """CHANGELOG not found - returns False."""
@@ -133,7 +133,7 @@ def test_sync_changelog_not_found(self, syncer, mock_github_client):
 
         result = syncer._sync_changelog(
             "release-snapshot/r4.1-abc123",
-            "post-release/r4.1",
+            "pr-to-main/r4.1",
             "r4.1"
         )
 
@@ -147,7 +147,7 @@ def test_sync_changelog_update_fails(self, syncer, mock_github_client):
 
         result = syncer._sync_changelog(
             "release-snapshot/r4.1-abc123",
-            "post-release/r4.1",
+            "pr-to-main/r4.1",
             "r4.1"
         )
 
@@ -157,7 +157,7 @@ def test_sync_changelog_invalid_release_tag(self, syncer, mock_github_client):
         """Invalid release tag format - returns False."""
         result = syncer._sync_changelog(
             "release-snapshot/invalid-abc123",
-            "post-release/invalid",
+            "pr-to-main/invalid",
             "invalid"
         )
 
@@ -172,7 +172,7 @@ def test_create_pr_success(self, syncer, mock_github_client):
         """Successfully creates PR."""
         mock_github_client._run_gh.return_value = "https://github.com/test-org/test-repo/pull/42"
 
-        result = syncer._create_pr("r4.1", "post-release/r4.1")
+        result = syncer._create_pr("r4.1", "pr-to-main/r4.1")
 
         assert result is not None
         assert result["number"] == 42
@@ -183,7 +183,7 @@ def test_create_pr_already_exists(self, syncer, mock_github_client):
         mock_github_client._run_gh.side_effect = GitHubClientError("PR already exists")
         mock_github_client.find_pr_for_branch.return_value = 99
 
-        result = syncer._create_pr("r4.1", "post-release/r4.1")
+        result = syncer._create_pr("r4.1", "pr-to-main/r4.1")
 
         assert result is not None
         assert result["number"] == 99