diff --git a/tests/system/large/blob/test_function.py b/tests/system/large/blob/test_function.py
index dfdbbffede..588d9b3321 100644
--- a/tests/system/large/blob/test_function.py
+++ b/tests/system/large/blob/test_function.py
@@ -25,6 +25,12 @@
 from bigframes import dtypes
 import bigframes.pandas as bpd
 
+# TODO(shobs): restore these tests after the managed udf cleanup issue is
+# resolved in the test project
+pytestmark = pytest.mark.skip(
+    reason="temporarily disable to debug managed udf cleanup in the test project"
+)
+
 
 @pytest.fixture(scope="function")
 def images_output_folder() -> Generator[str, None, None]:
diff --git a/tests/system/large/functions/test_managed_function.py b/tests/system/large/functions/test_managed_function.py
index 7c8c74e005..7001736bb2 100644
--- a/tests/system/large/functions/test_managed_function.py
+++ b/tests/system/large/functions/test_managed_function.py
@@ -21,6 +21,12 @@
 import bigframes.pandas as bpd
 from tests.system.utils import cleanup_function_assets
 
+# TODO(shobs): restore these tests after the managed udf cleanup issue is
+# resolved in the test project
+pytestmark = pytest.mark.skip(
+    reason="temporarily disable to debug managed udf cleanup in the test project"
+)
+
 bpd.options.experiments.udf = True