diff --git a/stdlib/VERSIONS b/stdlib/VERSIONS
index ed23ee6dd..1d04b47c7 100644
--- a/stdlib/VERSIONS
+++ b/stdlib/VERSIONS
@@ -22,6 +22,7 @@ __main__: 3.0-
 _ast: 3.0-
 _asyncio: 3.0-
 _bisect: 3.0-
+_blake2: 3.6-
 _bootlocale: 3.4-3.9
 _codecs: 3.0-
 _collections_abc: 3.3-
diff --git a/stdlib/_blake2.pyi b/stdlib/_blake2.pyi
new file mode 100644
index 000000000..10d7019a2
--- /dev/null
+++ b/stdlib/_blake2.pyi
@@ -0,0 +1,117 @@
+import sys
+from _typeshed import ReadableBuffer
+from typing import ClassVar, final
+from typing_extensions import Self
+
+BLAKE2B_MAX_DIGEST_SIZE: int = 64
+BLAKE2B_MAX_KEY_SIZE: int = 64
+BLAKE2B_PERSON_SIZE: int = 16
+BLAKE2B_SALT_SIZE: int = 16
+BLAKE2S_MAX_DIGEST_SIZE: int = 32
+BLAKE2S_MAX_KEY_SIZE: int = 32
+BLAKE2S_PERSON_SIZE: int = 8
+BLAKE2S_SALT_SIZE: int = 8
+
+@final
+class blake2b:
+    MAX_DIGEST_SIZE: ClassVar[int] = 64
+    MAX_KEY_SIZE: ClassVar[int] = 64
+    PERSON_SIZE: ClassVar[int] = 16
+    SALT_SIZE: ClassVar[int] = 16
+    block_size: int
+    digest_size: int
+    name: str
+    if sys.version_info >= (3, 9):
+        def __init__(
+            self,
+            data: ReadableBuffer = b"",
+            /,
+            *,
+            digest_size: int = 64,
+            key: ReadableBuffer = b"",
+            salt: ReadableBuffer = b"",
+            person: ReadableBuffer = b"",
+            fanout: int = 1,
+            depth: int = 1,
+            leaf_size: int = 0,
+            node_offset: int = 0,
+            node_depth: int = 0,
+            inner_size: int = 0,
+            last_node: bool = False,
+            usedforsecurity: bool = True,
+        ) -> None: ...
+    else:
+        def __init__(
+            self,
+            data: ReadableBuffer = b"",
+            /,
+            *,
+            digest_size: int = 64,
+            key: ReadableBuffer = b"",
+            salt: ReadableBuffer = b"",
+            person: ReadableBuffer = b"",
+            fanout: int = 1,
+            depth: int = 1,
+            leaf_size: int = 0,
+            node_offset: int = 0,
+            node_depth: int = 0,
+            inner_size: int = 0,
+            last_node: bool = False,
+        ) -> None: ...
+
+    def copy(self) -> Self: ...
+    def digest(self) -> bytes: ...
+    def hexdigest(self) -> str: ...
+    def update(self, data: ReadableBuffer, /) -> None: ...
+
+@final
+class blake2s:
+    MAX_DIGEST_SIZE: ClassVar[int] = 32
+    MAX_KEY_SIZE: ClassVar[int] = 32
+    PERSON_SIZE: ClassVar[int] = 8
+    SALT_SIZE: ClassVar[int] = 8
+    block_size: int
+    digest_size: int
+    name: str
+    if sys.version_info >= (3, 9):
+        def __init__(
+            self,
+            data: ReadableBuffer = b"",
+            /,
+            *,
+            digest_size: int = 32,
+            key: ReadableBuffer = b"",
+            salt: ReadableBuffer = b"",
+            person: ReadableBuffer = b"",
+            fanout: int = 1,
+            depth: int = 1,
+            leaf_size: int = 0,
+            node_offset: int = 0,
+            node_depth: int = 0,
+            inner_size: int = 0,
+            last_node: bool = False,
+            usedforsecurity: bool = True,
+        ) -> None: ...
+    else:
+        def __init__(
+            self,
+            data: ReadableBuffer = b"",
+            /,
+            *,
+            digest_size: int = 32,
+            key: ReadableBuffer = b"",
+            salt: ReadableBuffer = b"",
+            person: ReadableBuffer = b"",
+            fanout: int = 1,
+            depth: int = 1,
+            leaf_size: int = 0,
+            node_offset: int = 0,
+            node_depth: int = 0,
+            inner_size: int = 0,
+            last_node: bool = False,
+        ) -> None: ...
+
+    def copy(self) -> Self: ...
+    def digest(self) -> bytes: ...
+    def hexdigest(self) -> str: ...
+    def update(self, data: ReadableBuffer, /) -> None: ...
diff --git a/stdlib/hashlib.pyi b/stdlib/hashlib.pyi
index 93bd986c9..059f0f6e4 100644
--- a/stdlib/hashlib.pyi
+++ b/stdlib/hashlib.pyi
@@ -1,7 +1,8 @@
 import sys
+from _blake2 import blake2b as blake2b, blake2s as blake2s
 from _typeshed import ReadableBuffer
 from collections.abc import Callable, Set as AbstractSet
-from typing import Protocol, final
+from typing import Protocol
 from typing_extensions import Self
 
 if sys.version_info >= (3, 11):
@@ -106,53 +107,6 @@ shake_256 = _VarLenHash
 def scrypt(
     password: ReadableBuffer, *, salt: ReadableBuffer, n: int, r: int, p: int, maxmem: int = 0, dklen: int = 64
 ) -> bytes: ...
-@final
-class _BlakeHash(_Hash):
-    MAX_DIGEST_SIZE: int
-    MAX_KEY_SIZE: int
-    PERSON_SIZE: int
-    SALT_SIZE: int
-
-    if sys.version_info >= (3, 9):
-        def __init__(
-            self,
-            data: ReadableBuffer = ...,
-            /,
-            *,
-            digest_size: int = ...,
-            key: ReadableBuffer = ...,
-            salt: ReadableBuffer = ...,
-            person: ReadableBuffer = ...,
-            fanout: int = ...,
-            depth: int = ...,
-            leaf_size: int = ...,
-            node_offset: int = ...,
-            node_depth: int = ...,
-            inner_size: int = ...,
-            last_node: bool = ...,
-            usedforsecurity: bool = ...,
-        ) -> None: ...
-    else:
-        def __init__(
-            self,
-            data: ReadableBuffer = ...,
-            /,
-            *,
-            digest_size: int = ...,
-            key: ReadableBuffer = ...,
-            salt: ReadableBuffer = ...,
-            person: ReadableBuffer = ...,
-            fanout: int = ...,
-            depth: int = ...,
-            leaf_size: int = ...,
-            node_offset: int = ...,
-            node_depth: int = ...,
-            inner_size: int = ...,
-            last_node: bool = ...,
-        ) -> None: ...
-
-blake2b = _BlakeHash
-blake2s = _BlakeHash
 
 if sys.version_info >= (3, 11):
     class _BytesIOLike(Protocol):