diff --git a/.github/workflows/nightly-test-amd-rocm720.yml b/.github/workflows/nightly-test-amd-rocm720.yml
index a7744d845..4f1106b5a 100644
--- a/.github/workflows/nightly-test-amd-rocm720.yml
+++ b/.github/workflows/nightly-test-amd-rocm720.yml
@@ -99,8 +99,9 @@ concurrency:
   # When called via workflow_call with ref set, use a unique group per caller run to avoid
   # collisions with direct schedule/push triggers. We use inputs.ref (not github.event_name)
   # to detect this, because github.event_name inherits from the caller in workflow_call.
-  group: nightly-test-amd-rocm720-${{ inputs.ref && format('caller-{0}', github.run_id) || github.ref }}
-  cancel-in-progress: ${{ !inputs.ref && github.event_name != 'workflow_call' }}
+  # Manual dispatch runs also get unique groups so they never cancel each other.
+  group: nightly-test-amd-rocm720-${{ github.event_name == 'workflow_dispatch' && format('manual-{0}', github.run_id) || inputs.ref && format('caller-{0}', github.run_id) || github.ref }}
+  cancel-in-progress: ${{ !inputs.ref && github.event_name != 'workflow_call' && github.event_name != 'workflow_dispatch' }}
 
 jobs:
   # ============================================== MI30x ROCm 7.2 Unit Tests ==============================================
diff --git a/.github/workflows/nightly-test-amd.yml b/.github/workflows/nightly-test-amd.yml
index 778c838c1..da3fe0868 100644
--- a/.github/workflows/nightly-test-amd.yml
+++ b/.github/workflows/nightly-test-amd.yml
@@ -99,8 +99,9 @@ concurrency:
   # When called via workflow_call with ref set, use a unique group per caller run to avoid
   # collisions with direct schedule/push triggers. We use inputs.ref (not github.event_name)
   # to detect this, because github.event_name inherits from the caller in workflow_call.
-  group: nightly-test-amd-${{ inputs.ref && format('caller-{0}', github.run_id) || github.ref }}
-  cancel-in-progress: ${{ !inputs.ref && github.event_name != 'workflow_call' }}
+  # Manual dispatch runs also get unique groups so they never cancel each other.
+  group: nightly-test-amd-${{ github.event_name == 'workflow_dispatch' && format('manual-{0}', github.run_id) || inputs.ref && format('caller-{0}', github.run_id) || github.ref }}
+  cancel-in-progress: ${{ !inputs.ref && github.event_name != 'workflow_call' && github.event_name != 'workflow_dispatch' }}
 
 jobs:
   # ============================================== MI30x Unit Tests ==============================================
diff --git a/.github/workflows/pr-test-amd-rocm720.yml b/.github/workflows/pr-test-amd-rocm720.yml
index 8f7ca2693..b797d65e9 100644
--- a/.github/workflows/pr-test-amd-rocm720.yml
+++ b/.github/workflows/pr-test-amd-rocm720.yml
@@ -100,8 +100,9 @@ concurrency:
   # When called via workflow_call with run_all_tests=true, use a unique group per run to
   # avoid collisions with direct schedule/workflow_dispatch triggers. We use run_all_tests
   # (not github.event_name) to detect this, because github.event_name inherits from the caller.
-  group: pr-test-amd-rocm720-${{ inputs.run_all_tests && format('full-{0}', github.run_id) || inputs.pr_head_sha || inputs.ref || github.ref }}
-  cancel-in-progress: ${{ !inputs.run_all_tests && github.event_name != 'workflow_call' }}
+  # Manual dispatch runs also get unique groups so they never cancel each other.
+  group: pr-test-amd-rocm720-${{ (inputs.run_all_tests || github.event_name == 'workflow_dispatch') && format('full-{0}', github.run_id) || inputs.pr_head_sha || inputs.ref || github.ref }}
+  cancel-in-progress: ${{ !inputs.run_all_tests && github.event_name != 'workflow_call' && github.event_name != 'workflow_dispatch' }}
 
 jobs:
   call-gate:
diff --git a/.github/workflows/pr-test-amd.yml b/.github/workflows/pr-test-amd.yml
index 6f3a9758b..118472e1b 100644
--- a/.github/workflows/pr-test-amd.yml
+++ b/.github/workflows/pr-test-amd.yml
@@ -96,10 +96,10 @@ env:
   DOCKERHUB_AMD_TOKEN: ${{ secrets.DOCKERHUB_AMD_TOKEN }}
 
 concurrency:
-  # Scheduled and run_all_tests runs get unique groups (never cancel each other).
+  # Scheduled, run_all_tests, and manual dispatch runs get unique groups (never cancel each other).
   # PR runs share a group per branch so new pushes cancel stale runs.
-  group: pr-test-amd-${{ (inputs.run_all_tests || github.event_name == 'schedule') && format('full-{0}', github.run_id) || inputs.pr_head_sha || inputs.ref || github.ref }}
-  cancel-in-progress: ${{ !inputs.run_all_tests && github.event_name != 'workflow_call' && github.event_name != 'schedule' }}
+  group: pr-test-amd-${{ (inputs.run_all_tests || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && format('full-{0}', github.run_id) || inputs.pr_head_sha || inputs.ref || github.ref }}
+  cancel-in-progress: ${{ !inputs.run_all_tests && github.event_name != 'workflow_call' && github.event_name != 'schedule' && github.event_name != 'workflow_dispatch' }}
 
 jobs:
   call-gate: