diff --git a/lib/galaxy/managers/workflows.py b/lib/galaxy/managers/workflows.py
index ecb0b7a719ae..e7ad9fc98413 100644
--- a/lib/galaxy/managers/workflows.py
+++ b/lib/galaxy/managers/workflows.py
@@ -197,6 +197,11 @@ def index_query(
             filters.append(StoredWorkflow.published == true())
 
         stmt = select(StoredWorkflow)
+
+        # Do not include workflows authored by deleted users
+        if show_published or show_shared:
+            stmt = stmt.join(StoredWorkflow.user).where(and_(User.deleted == false(), User.purged == false()))
+
         if show_shared:
             stmt = stmt.outerjoin(StoredWorkflow.users_shared_with)
         stmt = stmt.outerjoin(StoredWorkflow.tags)