diff --git a/discord/app_commands/tree.py b/discord/app_commands/tree.py
index 3099071c0..f9b5337bb 100644
--- a/discord/app_commands/tree.py
+++ b/discord/app_commands/tree.py
@@ -200,7 +200,9 @@ class CommandTree(Generic[ClientT]):
 
         return AppCommand(data=command, state=self._state)
 
-    async def fetch_commands(self, *, guild: Optional[Snowflake] = None) -> List[AppCommand]:
+    async def fetch_commands(
+        self, *, guild: Optional[Snowflake] = None, with_localizations: bool = False
+    ) -> List[AppCommand]:
         """|coro|
 
         Fetches the application's current commands.
@@ -217,6 +219,10 @@ class CommandTree(Generic[ClientT]):
         guild: Optional[:class:`~discord.abc.Snowflake`]
             The guild to fetch the commands from. If not passed then global commands
             are fetched instead.
+        with_localizations: :class:`bool`
+            Whether to fetch the localizations for the commands. Defaults to ``False``.
+
+            .. versionadded:: 2.4
 
         Raises
         -------
@@ -234,9 +240,13 @@ class CommandTree(Generic[ClientT]):
             raise MissingApplicationID
 
         if guild is None:
-            commands = await self._http.get_global_commands(self.client.application_id)
+            commands = await self._http.get_global_commands(
+                self.client.application_id, with_localizations=with_localizations
+            )
         else:
-            commands = await self._http.get_guild_commands(self.client.application_id, guild.id)
+            commands = await self._http.get_guild_commands(
+                self.client.application_id, guild.id, with_localizations=with_localizations
+            )
 
         return [AppCommand(data=data, state=self._state) for data in commands]
 
diff --git a/discord/http.py b/discord/http.py
index 6617efa27..50597f536 100644
--- a/discord/http.py
+++ b/discord/http.py
@@ -2198,8 +2198,13 @@ class HTTPClient:
 
     # Application commands (global)
 
-    def get_global_commands(self, application_id: Snowflake) -> Response[List[command.ApplicationCommand]]:
-        return self.request(Route('GET', '/applications/{application_id}/commands', application_id=application_id))
+    def get_global_commands(
+        self, application_id: Snowflake, with_localizations: bool = False
+    ) -> Response[List[command.ApplicationCommand]]:
+        params = {'with_localizations': int(with_localizations)}
+        return self.request(
+            Route('GET', '/applications/{application_id}/commands', application_id=application_id), params=params
+        )
 
     def get_global_command(self, application_id: Snowflake, command_id: Snowflake) -> Response[command.ApplicationCommand]:
         r = Route(
@@ -2254,15 +2259,19 @@ class HTTPClient:
     # Application commands (guild)
 
     def get_guild_commands(
-        self, application_id: Snowflake, guild_id: Snowflake
+        self,
+        application_id: Snowflake,
+        guild_id: Snowflake,
+        with_localizations: bool = False,
     ) -> Response[List[command.ApplicationCommand]]:
+        params = {'with_localizations': int(with_localizations)}
         r = Route(
             'GET',
             '/applications/{application_id}/guilds/{guild_id}/commands',
             application_id=application_id,
             guild_id=guild_id,
         )
-        return self.request(r)
+        return self.request(r, params=params)
 
     def get_guild_command(
         self,