diff --git a/discord/threads.py b/discord/threads.py
index b47c189d299f..bbf476dc80ec 100644
--- a/discord/threads.py
+++ b/discord/threads.py
@@ -846,13 +846,21 @@ async def fetch_members(self) -> List[ThreadMember]:
         members = await self._state.http.get_thread_members(self.id)
         return [ThreadMember(parent=self, data=data) for data in members]
 
-    async def delete(self) -> None:
+    async def delete(self, *, reason: Optional[str] = None) -> None:
         """|coro|
 
         Deletes this thread.
 
         You must have :attr:`~Permissions.manage_threads` to delete threads.
 
+        Parameters
+        -----------
+        reason: Optional[:class:`str`]
+            The reason for deleting this thread.
+            Shows up on the audit log.
+
+            .. versionadded:: 2.4
+
         Raises
         -------
         Forbidden
@@ -860,7 +868,7 @@ async def delete(self) -> None:
         HTTPException
             Deleting the thread failed.
         """
-        await self._state.http.delete_channel(self.id)
+        await self._state.http.delete_channel(self.id, reason=reason)
 
     def get_partial_message(self, message_id: int, /) -> PartialMessage:
         """Creates a :class:`PartialMessage` from the message ID.