diff --git a/discord/channel.py b/discord/channel.py
index c31a6af0d..02f2de075 100644
--- a/discord/channel.py
+++ b/discord/channel.py
@@ -1600,6 +1600,7 @@ class StageChannel(VocalGuildChannel):
         topic: str,
         privacy_level: PrivacyLevel = MISSING,
         send_start_notification: bool = False,
+        scheduled_event: Snowflake = MISSING,
         reason: Optional[str] = None,
     ) -> StageInstance:
         """|coro|
@@ -1621,6 +1622,10 @@ class StageChannel(VocalGuildChannel):
             You must have :attr:`~Permissions.mention_everyone` to do this.
 
             .. versionadded:: 2.3
+        scheduled_event: :class:`~discord.abc.Snowflake`
+            The guild scheduled event associated with the stage instance.
+
+            .. versionadded:: 2.4
         reason: :class:`str`
             The reason the stage instance was created. Shows up on the audit log.
 
@@ -1647,6 +1652,9 @@ class StageChannel(VocalGuildChannel):
 
             payload['privacy_level'] = privacy_level.value
 
+        if scheduled_event is not MISSING:
+            payload['guild_scheduled_event_id'] = scheduled_event.id
+
         payload['send_start_notification'] = send_start_notification
 
         data = await self._state.http.create_stage_instance(**payload, reason=reason)
diff --git a/discord/http.py b/discord/http.py
index 84365cec7..aa6dc9f3e 100644
--- a/discord/http.py
+++ b/discord/http.py
@@ -1918,6 +1918,7 @@ class HTTPClient:
             'topic',
             'privacy_level',
             'send_start_notification',
+            'guild_scheduled_event_id',
         )
         payload = {k: v for k, v in payload.items() if k in valid_keys}