diff --git a/Doc/library/asyncio-policy.rst b/Doc/library/asyncio-policy.rst
index 0d7821e608ec98..9683550c3a9039 100644
--- a/Doc/library/asyncio-policy.rst
+++ b/Doc/library/asyncio-policy.rst
@@ -7,6 +7,8 @@
 Policies
 ========
 
+The policy system is deprecated as of Python 3.13 and will
+be removed in Python 3.15 or later.
 An event loop policy is a global object
 used to get and set the current :ref:`event loop <asyncio-event-loop>`,
 as well as create new event loops.
@@ -46,6 +48,8 @@ for the current process:
 
    If *policy* is set to ``None``, the default policy is restored.
 
+   .. deprecated-removed:: 3.13 3.15
+
 
 .. _asyncio-policy-objects:
 
diff --git a/Doc/whatsnew/3.13.rst b/Doc/whatsnew/3.13.rst
index e5f39c58490b85..274d532ec828e2 100644
--- a/Doc/whatsnew/3.13.rst
+++ b/Doc/whatsnew/3.13.rst
@@ -358,6 +358,11 @@ Deprecated
   They will be removed in Python 3.15.
   (Contributed by Victor Stinner in :gh:`105096`.)
 
+* :mod:`asyncio`:
+
+  * :func:`asyncio.set_event_loop_policy` will be removed along with the
+    rest of the asyncio policy system in Python 3.15 or later.
+
 * Passing more than one positional argument to :func:`sqlite3.connect` and the
   :class:`sqlite3.Connection` constructor is deprecated. The remaining
   parameters will become keyword-only in Python 3.15.
diff --git a/Lib/asyncio/events.py b/Lib/asyncio/events.py
index 0ccf85105e6673..fe7d71b850d57a 100644
--- a/Lib/asyncio/events.py
+++ b/Lib/asyncio/events.py
@@ -18,6 +18,7 @@
 import subprocess
 import sys
 import threading
+import warnings
 
 from . import format_helpers
 
@@ -787,6 +788,9 @@ def set_event_loop_policy(policy):
     """Set the current event loop policy.
 
     If policy is None, the default policy is restored."""
+    warnings._deprecated("set_event_loop_policy",
+                         "{name!r} is deprecated as of Python 3.13 and will be "
+                         "removed in Python {remove} or later.", remove=(3, 15))
     global _event_loop_policy
     if policy is not None and not isinstance(policy, AbstractEventLoopPolicy):
         raise TypeError(f"policy must be an instance of AbstractEventLoopPolicy or None, not '{type(policy).__name__}'")
diff --git a/Lib/test/libregrtest/save_env.py b/Lib/test/libregrtest/save_env.py
index b2cc381344b2ef..d97ef6b5953662 100644
--- a/Lib/test/libregrtest/save_env.py
+++ b/Lib/test/libregrtest/save_env.py
@@ -96,8 +96,7 @@ def get_asyncio_events__event_loop_policy(self):
         self.try_get_module('asyncio')
         return support.maybe_get_event_loop_policy()
     def restore_asyncio_events__event_loop_policy(self, policy):
-        asyncio = self.get_module('asyncio')
-        asyncio.set_event_loop_policy(policy)
+        support.set_event_loop_policy(policy)
 
     def get_sys_argv(self):
         return id(sys.argv), sys.argv, sys.argv[:]
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index f64f88dcd2c6f3..e36353f994e908 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -1892,6 +1892,13 @@ def maybe_get_event_loop_policy():
     import asyncio.events
     return asyncio.events._event_loop_policy
 
+def set_event_loop_policy(policy):
+    """Set the global event loop policy ignoring deprecation warnings"""
+    import asyncio
+    with warnings.catch_warnings():
+        warnings.simplefilter("ignore", DeprecationWarning)
+        asyncio.set_event_loop_policy(policy)
+
 # Helpers for testing hashing.
 NHASHBITS = sys.hash_info.width # number of bits in hash() result
 assert NHASHBITS in (32, 64)
diff --git a/Lib/test/test_asyncgen.py b/Lib/test/test_asyncgen.py
index a49630112af510..1d23507ef61af7 100644
--- a/Lib/test/test_asyncgen.py
+++ b/Lib/test/test_asyncgen.py
@@ -5,6 +5,7 @@
 
 from test.support.import_helper import import_module
 from test.support import gc_collect, requires_working_socket
+from test import support
 asyncio = import_module("asyncio")
 
 
@@ -429,7 +430,7 @@ def setUp(self):
     def tearDown(self):
         self.loop.close()
         self.loop = None
-        asyncio.set_event_loop_policy(None)
+        support.set_event_loop_policy(None)
 
     def check_async_iterator_anext(self, ait_class):
         with self.subTest(anext="pure-Python"):
diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py
index c2080977e9d587..d298c9fd3a5f4f 100644
--- a/Lib/test/test_asyncio/test_base_events.py
+++ b/Lib/test/test_asyncio/test_base_events.py
@@ -24,7 +24,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 def mock_socket_module():
diff --git a/Lib/test/test_asyncio/test_buffered_proto.py b/Lib/test/test_asyncio/test_buffered_proto.py
index f24e363ebfcfa3..fade54df48e324 100644
--- a/Lib/test/test_asyncio/test_buffered_proto.py
+++ b/Lib/test/test_asyncio/test_buffered_proto.py
@@ -2,10 +2,11 @@
 import unittest
 
 from test.test_asyncio import functional as func_tests
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class ReceiveStuffProto(asyncio.BufferedProtocol):
diff --git a/Lib/test/test_asyncio/test_context.py b/Lib/test/test_asyncio/test_context.py
index 6b80721873d95c..382c0fe5956efb 100644
--- a/Lib/test/test_asyncio/test_context.py
+++ b/Lib/test/test_asyncio/test_context.py
@@ -1,10 +1,11 @@
 import asyncio
 import decimal
 import unittest
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 @unittest.skipUnless(decimal.HAVE_CONTEXTVAR, "decimal is built with a thread-local context")
diff --git a/Lib/test/test_asyncio/test_eager_task_factory.py b/Lib/test/test_asyncio/test_eager_task_factory.py
index 0f8212dbec47be..74cc888b5384c2 100644
--- a/Lib/test/test_asyncio/test_eager_task_factory.py
+++ b/Lib/test/test_asyncio/test_eager_task_factory.py
@@ -8,12 +8,13 @@
 from asyncio import tasks
 from test.test_asyncio import utils as test_utils
 from test.support.script_helper import assert_python_ok
+from test import support
 
 MOCK_ANY = mock.ANY
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class EagerTaskFactoryLoopTests:
diff --git a/Lib/test/test_asyncio/test_events.py b/Lib/test/test_asyncio/test_events.py
index b25c0975736e20..4df3c2e818d903 100644
--- a/Lib/test/test_asyncio/test_events.py
+++ b/Lib/test/test_asyncio/test_events.py
@@ -39,7 +39,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 def broken_unix_getsockname():
@@ -2684,13 +2684,15 @@ def test_get_event_loop_policy(self):
         self.assertIs(policy, asyncio.get_event_loop_policy())
 
     def test_set_event_loop_policy(self):
-        self.assertRaises(
-            TypeError, asyncio.set_event_loop_policy, object())
+        with self.assertWarns(DeprecationWarning):
+            self.assertRaises(
+                TypeError, asyncio.set_event_loop_policy, object())
 
         old_policy = asyncio.get_event_loop_policy()
 
         policy = asyncio.DefaultEventLoopPolicy()
-        asyncio.set_event_loop_policy(policy)
+        with self.assertWarns(DeprecationWarning):
+            asyncio.set_event_loop_policy(policy)
         self.assertIs(policy, asyncio.get_event_loop_policy())
         self.assertIsNot(policy, old_policy)
 
@@ -2789,7 +2791,8 @@ def get_event_loop(self):
 
         old_policy = asyncio.get_event_loop_policy()
         try:
-            asyncio.set_event_loop_policy(Policy())
+            with self.assertWarns(DeprecationWarning):
+                asyncio.set_event_loop_policy(Policy())
             loop = asyncio.new_event_loop()
 
             with self.assertRaises(TestError):
@@ -2817,7 +2820,7 @@ async def func():
                 asyncio.get_event_loop()
 
         finally:
-            asyncio.set_event_loop_policy(old_policy)
+            support.set_event_loop_policy(old_policy)
             if loop is not None:
                 loop.close()
 
@@ -2829,7 +2832,8 @@ async def func():
     def test_get_event_loop_returns_running_loop2(self):
         old_policy = asyncio.get_event_loop_policy()
         try:
-            asyncio.set_event_loop_policy(asyncio.DefaultEventLoopPolicy())
+            with self.assertWarns(DeprecationWarning):
+                asyncio.set_event_loop_policy(asyncio.DefaultEventLoopPolicy())
             loop = asyncio.new_event_loop()
             self.addCleanup(loop.close)
 
@@ -2860,7 +2864,7 @@ async def func():
                 asyncio.get_event_loop()
 
         finally:
-            asyncio.set_event_loop_policy(old_policy)
+            support.set_event_loop_policy(old_policy)
             if loop is not None:
                 loop.close()
 
diff --git a/Lib/test/test_asyncio/test_futures.py b/Lib/test/test_asyncio/test_futures.py
index 2184b2091f84ee..9a16cf4ef632bc 100644
--- a/Lib/test/test_asyncio/test_futures.py
+++ b/Lib/test/test_asyncio/test_futures.py
@@ -16,7 +16,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 def _fakefunc(f):
diff --git a/Lib/test/test_asyncio/test_futures2.py b/Lib/test/test_asyncio/test_futures2.py
index b7cfffb76bd8f1..56897371d3afd1 100644
--- a/Lib/test/test_asyncio/test_futures2.py
+++ b/Lib/test/test_asyncio/test_futures2.py
@@ -4,10 +4,11 @@
 import traceback
 import unittest
 from asyncio import tasks
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class FutureTests:
diff --git a/Lib/test/test_asyncio/test_locks.py b/Lib/test/test_asyncio/test_locks.py
index f6c6a282429a21..b9834b96b23266 100644
--- a/Lib/test/test_asyncio/test_locks.py
+++ b/Lib/test/test_asyncio/test_locks.py
@@ -6,6 +6,7 @@
 
 import asyncio
 import collections
+from test import support
 
 STR_RGX_REPR = (
     r'^<(?P<class>.*?) object at (?P<address>.*?)'
@@ -20,7 +21,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class LockTests(unittest.IsolatedAsyncioTestCase):
diff --git a/Lib/test/test_asyncio/test_pep492.py b/Lib/test/test_asyncio/test_pep492.py
index dc25a46985e349..b6365351a8df0f 100644
--- a/Lib/test/test_asyncio/test_pep492.py
+++ b/Lib/test/test_asyncio/test_pep492.py
@@ -8,10 +8,11 @@
 
 import asyncio
 from test.test_asyncio import utils as test_utils
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 # Test that asyncio.iscoroutine() uses collections.abc.Coroutine
diff --git a/Lib/test/test_asyncio/test_proactor_events.py b/Lib/test/test_asyncio/test_proactor_events.py
index c42856e578b8cc..ecc140da360dfe 100644
--- a/Lib/test/test_asyncio/test_proactor_events.py
+++ b/Lib/test/test_asyncio/test_proactor_events.py
@@ -15,10 +15,11 @@
 from test.support import os_helper
 from test.support import socket_helper
 from test.test_asyncio import utils as test_utils
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 def close_transport(transport):
diff --git a/Lib/test/test_asyncio/test_protocols.py b/Lib/test/test_asyncio/test_protocols.py
index 0f232631867db5..e295423acd9dac 100644
--- a/Lib/test/test_asyncio/test_protocols.py
+++ b/Lib/test/test_asyncio/test_protocols.py
@@ -2,12 +2,13 @@
 from unittest import mock
 
 import asyncio
+from test import support
 
 
 def tearDownModule():
     # not needed for the test file but added for uniformness with all other
     # asyncio test files for the sake of unified cleanup
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class ProtocolsAbsTests(unittest.TestCase):
diff --git a/Lib/test/test_asyncio/test_queues.py b/Lib/test/test_asyncio/test_queues.py
index 2d058ccf6a8c72..74da812d2f0395 100644
--- a/Lib/test/test_asyncio/test_queues.py
+++ b/Lib/test/test_asyncio/test_queues.py
@@ -3,10 +3,11 @@
 import asyncio
 import unittest
 from types import GenericAlias
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class QueueBasicTests(unittest.IsolatedAsyncioTestCase):
diff --git a/Lib/test/test_asyncio/test_runners.py b/Lib/test/test_asyncio/test_runners.py
index 13493d3c806d6a..0e08d4abb10531 100644
--- a/Lib/test/test_asyncio/test_runners.py
+++ b/Lib/test/test_asyncio/test_runners.py
@@ -7,12 +7,13 @@
 import threading
 import unittest
 from test.test_asyncio import utils as test_utils
+from test import support
 from unittest import mock
 from unittest.mock import patch
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 def interrupt_self():
@@ -61,7 +62,7 @@ def setUp(self):
         super().setUp()
 
         policy = TestPolicy(self.new_loop)
-        asyncio.set_event_loop_policy(policy)
+        support.set_event_loop_policy(policy)
 
     def tearDown(self):
         policy = asyncio.get_event_loop_policy()
@@ -69,7 +70,7 @@ def tearDown(self):
             self.assertTrue(policy.loop.is_closed())
             self.assertTrue(policy.loop.shutdown_ag_run)
 
-        asyncio.set_event_loop_policy(None)
+        support.set_event_loop_policy(None)
         super().tearDown()
 
 
@@ -259,7 +260,7 @@ def new_event_loop():
             loop.set_task_factory(Task)
             return loop
 
-        asyncio.set_event_loop_policy(TestPolicy(new_event_loop))
+        support.set_event_loop_policy(TestPolicy(new_event_loop))
         with self.assertRaises(asyncio.CancelledError):
             asyncio.run(main())
 
diff --git a/Lib/test/test_asyncio/test_selector_events.py b/Lib/test/test_asyncio/test_selector_events.py
index c22b780b5edcb8..677e37a1453c3b 100644
--- a/Lib/test/test_asyncio/test_selector_events.py
+++ b/Lib/test/test_asyncio/test_selector_events.py
@@ -19,12 +19,13 @@
                                      _SelectorSocketTransport,
                                      _SelectorTransport)
 from test.test_asyncio import utils as test_utils
+from test import support
 
 MOCK_ANY = mock.ANY
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class TestBaseSelectorEventLoop(BaseSelectorEventLoop):
diff --git a/Lib/test/test_asyncio/test_sendfile.py b/Lib/test/test_asyncio/test_sendfile.py
index d33ff197bbfa1d..1e819e59297717 100644
--- a/Lib/test/test_asyncio/test_sendfile.py
+++ b/Lib/test/test_asyncio/test_sendfile.py
@@ -22,7 +22,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class MySendfileProto(asyncio.Protocol):
diff --git a/Lib/test/test_asyncio/test_server.py b/Lib/test/test_asyncio/test_server.py
index 7ff3f55f4f0c5a..ac7737444df4cd 100644
--- a/Lib/test/test_asyncio/test_server.py
+++ b/Lib/test/test_asyncio/test_server.py
@@ -6,10 +6,11 @@
 from test.support import socket_helper
 from test.test_asyncio import utils as test_utils
 from test.test_asyncio import functional as func_tests
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class BaseStartServer(func_tests.FunctionalTestCaseMixin):
diff --git a/Lib/test/test_asyncio/test_sock_lowlevel.py b/Lib/test/test_asyncio/test_sock_lowlevel.py
index 075113cbe8e4a6..1126fa80a085b5 100644
--- a/Lib/test/test_asyncio/test_sock_lowlevel.py
+++ b/Lib/test/test_asyncio/test_sock_lowlevel.py
@@ -15,7 +15,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class MyProto(asyncio.Protocol):
diff --git a/Lib/test/test_asyncio/test_ssl.py b/Lib/test/test_asyncio/test_ssl.py
index e9cc735613fb8e..d27d1343f6d586 100644
--- a/Lib/test/test_asyncio/test_ssl.py
+++ b/Lib/test/test_asyncio/test_ssl.py
@@ -25,7 +25,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class MyBaseProto(asyncio.Protocol):
diff --git a/Lib/test/test_asyncio/test_sslproto.py b/Lib/test/test_asyncio/test_sslproto.py
index 37d015339761c6..516902c137f7d4 100644
--- a/Lib/test/test_asyncio/test_sslproto.py
+++ b/Lib/test/test_asyncio/test_sslproto.py
@@ -21,7 +21,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 @unittest.skipIf(ssl is None, 'No ssl module')
diff --git a/Lib/test/test_asyncio/test_streams.py b/Lib/test/test_asyncio/test_streams.py
index 9c92e75886c593..aaf8b438a1d26e 100644
--- a/Lib/test/test_asyncio/test_streams.py
+++ b/Lib/test/test_asyncio/test_streams.py
@@ -18,10 +18,11 @@
 
 import asyncio
 from test.test_asyncio import utils as test_utils
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class StreamTests(test_utils.TestCase):
diff --git a/Lib/test/test_asyncio/test_subprocess.py b/Lib/test/test_asyncio/test_subprocess.py
index 179c8cb8cc17cf..ba1fa5c3103ade 100644
--- a/Lib/test/test_asyncio/test_subprocess.py
+++ b/Lib/test/test_asyncio/test_subprocess.py
@@ -35,7 +35,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class TestSubprocessTransport(base_subprocess.BaseSubprocessTransport):
diff --git a/Lib/test/test_asyncio/test_taskgroups.py b/Lib/test/test_asyncio/test_taskgroups.py
index 7a18362b54e469..b336a49e96a537 100644
--- a/Lib/test/test_asyncio/test_taskgroups.py
+++ b/Lib/test/test_asyncio/test_taskgroups.py
@@ -7,13 +7,14 @@
 import contextlib
 from asyncio import taskgroups
 import unittest
+from test import support
 
 from test.test_asyncio.utils import await_without_task
 
 
 # To prevent a warning "test altered the execution environment"
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class MyExc(Exception):
diff --git a/Lib/test/test_asyncio/test_tasks.py b/Lib/test/test_asyncio/test_tasks.py
index 4dfaff847edb90..1c2fcfdde0dacb 100644
--- a/Lib/test/test_asyncio/test_tasks.py
+++ b/Lib/test/test_asyncio/test_tasks.py
@@ -22,7 +22,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 async def coroutine_function():
diff --git a/Lib/test/test_asyncio/test_threads.py b/Lib/test/test_asyncio/test_threads.py
index 1138a93e0f78ec..70eebdc15f57d2 100644
--- a/Lib/test/test_asyncio/test_threads.py
+++ b/Lib/test/test_asyncio/test_threads.py
@@ -5,10 +5,11 @@
 
 from contextvars import ContextVar
 from unittest import mock
+from test import support
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class ToThreadTests(unittest.IsolatedAsyncioTestCase):
diff --git a/Lib/test/test_asyncio/test_timeouts.py b/Lib/test/test_asyncio/test_timeouts.py
index f54e79e4d8e600..e2dea71c374bfd 100644
--- a/Lib/test/test_asyncio/test_timeouts.py
+++ b/Lib/test/test_asyncio/test_timeouts.py
@@ -4,12 +4,13 @@
 import time
 
 import asyncio
+from test import support
 
 from test.test_asyncio.utils import await_without_task
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 class TimeoutTests(unittest.IsolatedAsyncioTestCase):
 
diff --git a/Lib/test/test_asyncio/test_transports.py b/Lib/test/test_asyncio/test_transports.py
index bbdb218efaa3b6..77b5a19cb6baa0 100644
--- a/Lib/test/test_asyncio/test_transports.py
+++ b/Lib/test/test_asyncio/test_transports.py
@@ -5,12 +5,13 @@
 
 import asyncio
 from asyncio import transports
+from test import support
 
 
 def tearDownModule():
     # not needed for the test file but added for uniformness with all other
     # asyncio test files for the sake of unified cleanup
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class TransportTests(unittest.TestCase):
diff --git a/Lib/test/test_asyncio/test_unix_events.py b/Lib/test/test_asyncio/test_unix_events.py
index d2c8cba6acfa31..4d01b6af00c302 100644
--- a/Lib/test/test_asyncio/test_unix_events.py
+++ b/Lib/test/test_asyncio/test_unix_events.py
@@ -34,7 +34,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 MOCK_ANY = mock.ANY
diff --git a/Lib/test/test_asyncio/test_waitfor.py b/Lib/test/test_asyncio/test_waitfor.py
index d52f32534a0cfe..a99bc48731df23 100644
--- a/Lib/test/test_asyncio/test_waitfor.py
+++ b/Lib/test/test_asyncio/test_waitfor.py
@@ -5,7 +5,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 # The following value can be used as a very small timeout:
diff --git a/Lib/test/test_asyncio/test_windows_events.py b/Lib/test/test_asyncio/test_windows_events.py
index 6e6c90a247b291..5024768fb1fa65 100644
--- a/Lib/test/test_asyncio/test_windows_events.py
+++ b/Lib/test/test_asyncio/test_windows_events.py
@@ -6,6 +6,7 @@
 import threading
 import unittest
 from unittest import mock
+from test import support
 
 if sys.platform != 'win32':
     raise unittest.SkipTest('Windows only')
@@ -19,7 +20,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class UpperProto(asyncio.Protocol):
@@ -294,11 +295,11 @@ async def main():
 
         old_policy = asyncio.get_event_loop_policy()
         try:
-            asyncio.set_event_loop_policy(
+            support.set_event_loop_policy(
                 asyncio.WindowsSelectorEventLoopPolicy())
             asyncio.run(main())
         finally:
-            asyncio.set_event_loop_policy(old_policy)
+            support.set_event_loop_policy(old_policy)
 
     def test_proactor_win_policy(self):
         async def main():
@@ -308,11 +309,11 @@ async def main():
 
         old_policy = asyncio.get_event_loop_policy()
         try:
-            asyncio.set_event_loop_policy(
+            support.set_event_loop_policy(
                 asyncio.WindowsProactorEventLoopPolicy())
             asyncio.run(main())
         finally:
-            asyncio.set_event_loop_policy(old_policy)
+            support.set_event_loop_policy(old_policy)
 
 
 if __name__ == '__main__':
diff --git a/Lib/test/test_asyncio/test_windows_utils.py b/Lib/test/test_asyncio/test_windows_utils.py
index eafa5be3829682..e97a9ae7fd3ba6 100644
--- a/Lib/test/test_asyncio/test_windows_utils.py
+++ b/Lib/test/test_asyncio/test_windows_utils.py
@@ -16,7 +16,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class PipeTests(unittest.TestCase):
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index b7966f8f03875b..bb13398c0254bf 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -462,7 +462,7 @@ async def arange(n):
                 asyncio.run(eval(co, globals_))
                 self.assertEqual(globals_['a'], 1)
         finally:
-            asyncio.set_event_loop_policy(policy)
+            support.set_event_loop_policy(policy)
 
     def test_compile_top_level_await_invalid_cases(self):
          # helper function just to check we can run top=level async-for
@@ -499,7 +499,7 @@ async def arange(n):
                              mode,
                              flags=ast.PyCF_ALLOW_TOP_LEVEL_AWAIT)
         finally:
-            asyncio.set_event_loop_policy(policy)
+            support.set_event_loop_policy(policy)
 
 
     def test_compile_async_generator(self):
diff --git a/Lib/test/test_contextlib_async.py b/Lib/test/test_contextlib_async.py
index ca7315783b9674..f1b494f0e328b6 100644
--- a/Lib/test/test_contextlib_async.py
+++ b/Lib/test/test_contextlib_async.py
@@ -11,7 +11,7 @@
 support.requires_working_socket(module=True)
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class TestAbstractAsyncContextManager(unittest.IsolatedAsyncioTestCase):
diff --git a/Lib/test/test_coroutines.py b/Lib/test/test_coroutines.py
index 47145782c0f04f..8d28cc907855c6 100644
--- a/Lib/test/test_coroutines.py
+++ b/Lib/test/test_coroutines.py
@@ -2281,7 +2281,7 @@ async def f():
             pass
         finally:
             loop.close()
-            asyncio.set_event_loop_policy(None)
+            support.set_event_loop_policy(None)
 
         self.assertEqual(buffer, [1, 2, 'MyException'])
 
diff --git a/Lib/test/test_inspect/test_inspect.py b/Lib/test/test_inspect/test_inspect.py
index 33eae8505d5d24..44ee5976c34023 100644
--- a/Lib/test/test_inspect/test_inspect.py
+++ b/Lib/test/test_inspect/test_inspect.py
@@ -74,7 +74,7 @@ def revise(filename, *args):
 
 def tearDownModule():
     if support.has_socket_support:
-        asyncio.set_event_loop_policy(None)
+        support.set_event_loop_policy(None)
 
 
 def signatures_with_lexicographic_keyword_only_parameters():
@@ -1012,8 +1012,7 @@ def f(self):
         "socket.accept is broken"
     )
     def test_nested_class_definition_inside_async_function(self):
-        import asyncio
-        self.addCleanup(asyncio.set_event_loop_policy, None)
+        self.addCleanup(support.set_event_loop_policy, None)
         self.assertSourceEqual(asyncio.run(mod2.func225()), 226, 227)
         self.assertSourceEqual(mod2.cls226, 231, 235)
         self.assertSourceEqual(asyncio.run(mod2.cls226().func232()), 233, 234)
diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py
index ab969ce26a69e7..5024f26be450c3 100644
--- a/Lib/test/test_logging.py
+++ b/Lib/test/test_logging.py
@@ -5002,7 +5002,7 @@ def test_taskName_with_asyncio_imported(self):
                 logging.logAsyncioTasks = False
                 runner.run(make_record(self.assertIsNone))
         finally:
-            asyncio.set_event_loop_policy(None)
+            support.set_event_loop_policy(None)
 
     @support.requires_working_socket()
     def test_taskName_without_asyncio_imported(self):
@@ -5014,7 +5014,7 @@ def test_taskName_without_asyncio_imported(self):
                 logging.logAsyncioTasks = False
                 runner.run(make_record(self.assertIsNone))
         finally:
-            asyncio.set_event_loop_policy(None)
+            support.set_event_loop_policy(None)
 
 
 class BasicConfigTest(unittest.TestCase):
@@ -5318,7 +5318,7 @@ async def log_record():
                 data = f.read().strip()
             self.assertRegex(data, r'Task-\d+ - hello world')
         finally:
-            asyncio.set_event_loop_policy(None)
+            support.set_event_loop_policy(None)
             if handler:
                 handler.close()
 
diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index 22e40d9557be7c..12c11a8016366e 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -102,7 +102,7 @@ def create_file(filename, content=b'content'):
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class MiscTests(unittest.TestCase):
diff --git a/Lib/test/test_pdb.py b/Lib/test/test_pdb.py
index 5fef8365f59710..38dfa35c68c8fb 100644
--- a/Lib/test/test_pdb.py
+++ b/Lib/test/test_pdb.py
@@ -1627,7 +1627,7 @@ def test_pdb_next_command_for_coroutine():
     ...     loop = asyncio.new_event_loop()
     ...     loop.run_until_complete(test_main())
     ...     loop.close()
-    ...     asyncio.set_event_loop_policy(None)
+    ...     support.set_event_loop_policy(None)
     ...     print("finished")
 
     >>> with PdbTestInput(['step',
@@ -1687,7 +1687,7 @@ def test_pdb_next_command_for_asyncgen():
     ...     loop = asyncio.new_event_loop()
     ...     loop.run_until_complete(test_main())
     ...     loop.close()
-    ...     asyncio.set_event_loop_policy(None)
+    ...     support.set_event_loop_policy(None)
     ...     print("finished")
 
     >>> with PdbTestInput(['step',
@@ -1799,7 +1799,7 @@ def test_pdb_return_command_for_coroutine():
     ...     loop = asyncio.new_event_loop()
     ...     loop.run_until_complete(test_main())
     ...     loop.close()
-    ...     asyncio.set_event_loop_policy(None)
+    ...     support.set_event_loop_policy(None)
     ...     print("finished")
 
     >>> with PdbTestInput(['step',
@@ -1890,7 +1890,7 @@ def test_pdb_until_command_for_coroutine():
     ...     loop = asyncio.new_event_loop()
     ...     loop.run_until_complete(test_main())
     ...     loop.close()
-    ...     asyncio.set_event_loop_policy(None)
+    ...     support.set_event_loop_policy(None)
     ...     print("finished")
 
     >>> with PdbTestInput(['step',
diff --git a/Lib/test/test_sys_settrace.py b/Lib/test/test_sys_settrace.py
index df7dd36274df2e..8235403c951e2d 100644
--- a/Lib/test/test_sys_settrace.py
+++ b/Lib/test/test_sys_settrace.py
@@ -2028,7 +2028,7 @@ def run_async_test(self, func, jumpFrom, jumpTo, expected, error=None,
             asyncio.run(func(output))
 
         sys.settrace(None)
-        asyncio.set_event_loop_policy(None)
+        support.set_event_loop_policy(None)
         self.compare_jump_output(expected, output)
 
     def jump_test(jumpFrom, jumpTo, expected, error=None, event='line', warning=None):
diff --git a/Lib/test/test_type_params.py b/Lib/test/test_type_params.py
index 25ee188731f31f..63427bee5a8577 100644
--- a/Lib/test/test_type_params.py
+++ b/Lib/test/test_type_params.py
@@ -5,6 +5,7 @@
 import pickle
 import weakref
 from test.support import requires_working_socket, check_syntax_error, run_code
+from test import support
 
 from typing import Generic, Sequence, TypeVar, TypeVarTuple, ParamSpec, get_args
 
@@ -850,7 +851,7 @@ async def coroutine[B]():
 
         co = get_coroutine()
 
-        self.addCleanup(asyncio.set_event_loop_policy, None)
+        self.addCleanup(support.set_event_loop_policy, None)
         a, b = asyncio.run(co())
 
         self.assertIsInstance(a, TypeVar)
diff --git a/Lib/test/test_unittest/test_async_case.py b/Lib/test/test_unittest/test_async_case.py
index ba1ab838cd4a22..5c71bbacd99e70 100644
--- a/Lib/test/test_unittest/test_async_case.py
+++ b/Lib/test/test_unittest/test_async_case.py
@@ -11,7 +11,7 @@ class MyException(Exception):
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class TestCM:
diff --git a/Lib/test/test_unittest/testmock/testasync.py b/Lib/test/test_unittest/testmock/testasync.py
index f57b83f457f279..b8bb6a274fe790 100644
--- a/Lib/test/test_unittest/testmock/testasync.py
+++ b/Lib/test/test_unittest/testmock/testasync.py
@@ -15,7 +15,7 @@
 
 
 def tearDownModule():
-    asyncio.set_event_loop_policy(None)
+    support.set_event_loop_policy(None)
 
 
 class AsyncClass:
diff --git a/Misc/NEWS.d/next/Library/2023-10-11-15-55-53.gh-issue-94597.qXo8Q4.rst b/Misc/NEWS.d/next/Library/2023-10-11-15-55-53.gh-issue-94597.qXo8Q4.rst
new file mode 100644
index 00000000000000..c343610edd4c06
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-10-11-15-55-53.gh-issue-94597.qXo8Q4.rst
@@ -0,0 +1 @@
+Deprecate :func:`asyncio.set_event_loop_policy`.