diff --git a/Lib/test/support/os_helper.py b/Lib/test/support/os_helper.py
index 8071c248b9b67e..891405943b78c5 100644
--- a/Lib/test/support/os_helper.py
+++ b/Lib/test/support/os_helper.py
@@ -632,7 +632,8 @@ def fd_count():
     if hasattr(os, 'sysconf'):
         try:
             MAXFD = os.sysconf("SC_OPEN_MAX")
-        except OSError:
+        except (OSError, ValueError):
+            # gh-118201: ValueError is raised intermittently on iOS
             pass
 
     old_modes = None
diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index 6a34f48f7873ee..eaa676673f8af0 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -2365,6 +2365,7 @@ def test_fchown(self):
         support.is_emscripten or support.is_wasi,
         "musl libc issue on Emscripten/WASI, bpo-46390"
     )
+    @unittest.skipIf(support.is_apple_mobile, "gh-118201: Test is flaky on iOS")
     def test_fpathconf(self):
         self.check(os.pathconf, "PC_NAME_MAX")
         self.check(os.fpathconf, "PC_NAME_MAX")