diff --git a/stdlib/collections/__init__.pyi b/stdlib/collections/__init__.pyi
index 32f996c6e..e2610011f 100644
--- a/stdlib/collections/__init__.pyi
+++ b/stdlib/collections/__init__.pyi
@@ -225,7 +225,9 @@ class deque(MutableSequence[_T], Generic[_T]):
 
 class Counter(dict[_T, int], Generic[_T]):
     @overload
-    def __init__(self, __iterable: None = ..., **kwargs: int) -> None: ...
+    def __init__(self: Counter[_T], __iterable: None = ...) -> None: ...
+    @overload
+    def __init__(self: Counter[str], __iterable: None = ..., **kwargs: int) -> None: ...
     @overload
     def __init__(self, __mapping: SupportsKeysAndGetItem[_T, int]) -> None: ...
     @overload
@@ -298,22 +300,30 @@ class OrderedDict(dict[_KT, _VT], Reversible[_KT], Generic[_KT, _VT]):
 class defaultdict(dict[_KT, _VT], Generic[_KT, _VT]):
     default_factory: Callable[[], _VT] | None
     @overload
-    def __init__(self, **kwargs: _VT) -> None: ...
+    def __init__(self: defaultdict[_KT, _VT]) -> None: ...
+    @overload
+    def __init__(self: defaultdict[str, _VT], **kwargs: _VT) -> None: ...
     @overload
     def __init__(self, __default_factory: Callable[[], _VT] | None) -> None: ...
     @overload
-    def __init__(self, __default_factory: Callable[[], _VT] | None, **kwargs: _VT) -> None: ...
+    def __init__(self: defaultdict[str, _VT], __default_factory: Callable[[], _VT] | None, **kwargs: _VT) -> None: ...
     @overload
     def __init__(self, __default_factory: Callable[[], _VT] | None, __map: SupportsKeysAndGetItem[_KT, _VT]) -> None: ...
     @overload
     def __init__(
-        self, __default_factory: Callable[[], _VT] | None, __map: SupportsKeysAndGetItem[_KT, _VT], **kwargs: _VT
+        self: defaultdict[str, _VT],
+        __default_factory: Callable[[], _VT] | None,
+        __map: SupportsKeysAndGetItem[str, _VT],
+        **kwargs: _VT,
     ) -> None: ...
     @overload
     def __init__(self, __default_factory: Callable[[], _VT] | None, __iterable: Iterable[tuple[_KT, _VT]]) -> None: ...
     @overload
     def __init__(
-        self, __default_factory: Callable[[], _VT] | None, __iterable: Iterable[tuple[_KT, _VT]], **kwargs: _VT
+        self: defaultdict[str, _VT],
+        __default_factory: Callable[[], _VT] | None,
+        __iterable: Iterable[tuple[str, _VT]],
+        **kwargs: _VT,
     ) -> None: ...
     def __missing__(self, __key: _KT) -> _VT: ...
     def __copy__(self: Self) -> Self: ...