diff --git a/discord/channel.py b/discord/channel.py
index 05e9c55cb..21b87c1b6 100644
--- a/discord/channel.py
+++ b/discord/channel.py
@@ -127,6 +127,10 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
         .. note::
 
             To check if the channel or the guild of that channel are marked as NSFW, consider :meth:`is_nsfw` instead.
+    default_auto_archive_duration: :class:`int`
+        The default auto archive duration in minutes for threads created in this channel.
+
+        .. versionadded:: 2.0
     """
 
     __slots__ = (
@@ -142,6 +146,7 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
         '_overwrites',
         '_type',
         'last_message_id',
+        'default_auto_archive_duration',
     )
 
     def __init__(self, *, state: ConnectionState, guild: Guild, data: TextChannelPayload):
@@ -171,6 +176,7 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
         self.nsfw: bool = data.get('nsfw', False)
         # Does this need coercion into `int`? No idea yet.
         self.slowmode_delay: int = data.get('rate_limit_per_user', 0)
+        self.default_auto_archive_duration: ThreadArchiveDuration = data.get('default_auto_archive_duration', 1440)
         self._type: int = data.get('type', self._type)
         self.last_message_id: Optional[int] = utils._get_as_snowflake(data, 'last_message_id')
         self._fill_overwrites(data)
@@ -250,6 +256,7 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
         sync_permissions: bool = ...,
         category: Optional[CategoryChannel] = ...,
         slowmode_delay: int = ...,
+        default_auto_archive_duration: ThreadArchiveDuration = ...,
         type: ChannelType = ...,
         overwrites: Mapping[Union[Role, Member, Snowflake], PermissionOverwrite] = ...,
     ) -> None:
@@ -301,6 +308,9 @@ class TextChannel(discord.abc.Messageable, discord.abc.GuildChannel, Hashable):
         overwrites: :class:`Mapping`
             A :class:`Mapping` of target (either a role or a member) to
             :class:`PermissionOverwrite` to apply to the channel.
+        default_auto_archive_duration: :class:`int`
+            The new default auto archive duration in minutes for threads created in this channel.
+            Must be one of ``60``, ``1440``, ``4320``, or ``10080``.
 
         Raises
         ------
diff --git a/discord/http.py b/discord/http.py
index f998815f8..7e7e3cdb0 100644
--- a/discord/http.py
+++ b/discord/http.py
@@ -823,6 +823,7 @@ class HTTPClient:
             'archived',
             'auto_archive_duration',
             'locked',
+            'default_auto_archive_duration',
         )
         payload = {k: v for k, v in options.items() if k in valid_keys}
         return self.request(r, reason=reason, json=payload)
diff --git a/discord/types/channel.py b/discord/types/channel.py
index a57cf93cc..a35351e47 100644
--- a/discord/types/channel.py
+++ b/discord/types/channel.py
@@ -25,7 +25,7 @@ DEALINGS IN THE SOFTWARE.
 from typing import List, Literal, Optional, TypedDict, Union
 from .user import PartialUser
 from .snowflake import Snowflake
-from .threads import ThreadMetadata, ThreadMember
+from .threads import ThreadMetadata, ThreadMember, ThreadArchiveDuration
 
 
 OverwriteType = Literal[0, 1]
@@ -63,6 +63,7 @@ class _TextChannelOptional(TypedDict, total=False):
     last_message_id: Optional[Snowflake]
     last_pin_timestamp: str
     rate_limit_per_user: int
+    default_auto_archive_duration: ThreadArchiveDuration
 
 
 class TextChannel(_BaseGuildChannel, _TextChannelOptional):