diff --git a/test/asynchronous/test_subinterpreters.py b/test/asynchronous/test_subinterpreters.py
index f3e8c2883c..fb8cc2d42f 100644
--- a/test/asynchronous/test_subinterpreters.py
+++ b/test/asynchronous/test_subinterpreters.py
@@ -40,6 +40,7 @@
     async_client_context,
     unittest,
 )
+from test.utils_shared import gevent_monkey_patched
 
 _IS_SYNC = False
 
@@ -55,6 +56,10 @@ def _get_n(queue, n, errors):
     @unittest.skipUnless(
         sys.version_info >= (3, 14), "concurrent.interpreters requires Python 3.14+"
     )
+    @unittest.skipIf(
+        gevent_monkey_patched(),
+        "gevent does not support subinterpreters",
+    )
     async def test_subinterpreters(self):
         if interpreters is None:
             self.skipTest("concurrent.interpreters is not available")
diff --git a/test/test_subinterpreters.py b/test/test_subinterpreters.py
index e16d8be642..d9f4207b48 100644
--- a/test/test_subinterpreters.py
+++ b/test/test_subinterpreters.py
@@ -40,6 +40,7 @@
     client_context,
     unittest,
 )
+from test.utils_shared import gevent_monkey_patched
 
 _IS_SYNC = True
 
@@ -55,6 +56,10 @@ def _get_n(queue, n, errors):
     @unittest.skipUnless(
         sys.version_info >= (3, 14), "concurrent.interpreters requires Python 3.14+"
     )
+    @unittest.skipIf(
+        gevent_monkey_patched(),
+        "gevent does not support subinterpreters",
+    )
     def test_subinterpreters(self):
         if interpreters is None:
             self.skipTest("concurrent.interpreters is not available")