diff --git a/stdlib/warnings.pyi b/stdlib/warnings.pyi
index da281e38ddd0..e17b6e3a25b3 100644
--- a/stdlib/warnings.pyi
+++ b/stdlib/warnings.pyi
@@ -27,7 +27,9 @@ if sys.version_info >= (3, 14):
     _ActionKind: TypeAlias = Literal["default", "error", "ignore", "always", "module", "once"]
 else:
     _ActionKind: TypeAlias = Literal["default", "error", "ignore", "always", "all", "module", "once"]
-filters: Sequence[tuple[str, re.Pattern[str] | None, type[Warning], re.Pattern[str] | None, int]]  # undocumented, do not mutate
+filters: Sequence[
+    tuple[str, re.Pattern[str] | None, type[Warning] | tuple[type[Warning], ...], re.Pattern[str] | None, int]
+]  # undocumented, do not mutate
 
 def showwarning(
     message: Warning | str,
@@ -43,7 +45,9 @@ def formatwarning(
 def filterwarnings(
     action: _ActionKind, message: str = "", category: type[Warning] = ..., module: str = "", lineno: int = 0, append: bool = False
 ) -> None: ...
-def simplefilter(action: _ActionKind, category: type[Warning] = ..., lineno: int = 0, append: bool = False) -> None: ...
+def simplefilter(
+    action: _ActionKind, category: type[Warning] | tuple[type[Warning], ...] = ..., lineno: int = 0, append: bool = False
+) -> None: ...
 def resetwarnings() -> None: ...
 
 class _OptionError(Exception): ...
@@ -92,7 +96,7 @@ class catch_warnings(Generic[_W_co]):
             record: Literal[False] = False,
             module: ModuleType | None = None,
             action: _ActionKind | None = None,
-            category: type[Warning] = ...,
+            category: type[Warning] | tuple[type[Warning], ...] = ...,
             lineno: int = 0,
             append: bool = False,
         ) -> None: ...
@@ -103,7 +107,7 @@ class catch_warnings(Generic[_W_co]):
             record: Literal[True],
             module: ModuleType | None = None,
             action: _ActionKind | None = None,
-            category: type[Warning] = ...,
+            category: type[Warning] | tuple[type[Warning], ...] = ...,
             lineno: int = 0,
             append: bool = False,
         ) -> None: ...
@@ -114,7 +118,7 @@ class catch_warnings(Generic[_W_co]):
             record: bool,
             module: ModuleType | None = None,
             action: _ActionKind | None = None,
-            category: type[Warning] = ...,
+            category: type[Warning] | tuple[type[Warning], ...] = ...,
             lineno: int = 0,
             append: bool = False,
         ) -> None: ...