diff --git a/disagreement/ext/commands/converters.py b/disagreement/ext/commands/converters.py
index 05158a7..ea09879 100644
--- a/disagreement/ext/commands/converters.py
+++ b/disagreement/ext/commands/converters.py
@@ -6,7 +6,7 @@ import re
 import inspect
 
 from .errors import BadArgument
-from disagreement.models import Member, Guild, Role
+from disagreement.models import Member, Guild, Role, User
 
 if TYPE_CHECKING:
     from .core import CommandContext
@@ -143,6 +143,21 @@ class GuildConverter(Converter["Guild"]):
         raise BadArgument(f"Guild '{argument}' not found.")
 
 
+class UserConverter(Converter["User"]):
+    async def convert(self, ctx: "CommandContext", argument: str) -> "User":
+        match = re.match(r"<@!?(\d+)>$", argument)
+        user_id = match.group(1) if match else argument
+
+        user = ctx.bot._users.get(user_id)
+        if user:
+            return user
+
+        user = await ctx.bot.fetch_user(user_id)
+        if user:
+            return user
+        raise BadArgument(f"User '{argument}' not found.")
+
+
 # Default converters mapping
 DEFAULT_CONVERTERS: dict[type, Converter[Any]] = {
     int: IntConverter(),
@@ -152,7 +167,7 @@ DEFAULT_CONVERTERS: dict[type, Converter[Any]] = {
     Member: MemberConverter(),
     Guild: GuildConverter(),
     Role: RoleConverter(),
-    # User: UserConverter(), # Add when User model and converter are ready
+    User: UserConverter(),
 }
 
 
diff --git a/tests/test_additional_converters.py b/tests/test_additional_converters.py
index 40da104..8ee751f 100644
--- a/tests/test_additional_converters.py
+++ b/tests/test_additional_converters.py
@@ -3,7 +3,7 @@ import pytest
 from disagreement.ext.commands.converters import run_converters
 from disagreement.ext.commands.core import CommandContext, Command
 from disagreement.ext.commands.errors import BadArgument
-from disagreement.models import Message, Member, Role, Guild
+from disagreement.models import Message, Member, Role, Guild, User
 from disagreement.enums import (
     VerificationLevel,
     MessageNotificationLevel,
@@ -15,13 +15,14 @@ from disagreement.enums import (
 
 
 from disagreement.client import Client
-from disagreement.cache import GuildCache
+from disagreement.cache import GuildCache, Cache
 
 
 class DummyBot(Client):
     def __init__(self):
         super().__init__(token="test")
         self._guilds = GuildCache()
+        self._users = Cache()
 
     def get_guild(self, guild_id):
         return self._guilds.get(guild_id)
@@ -37,6 +38,9 @@ class DummyBot(Client):
     async def fetch_guild(self, guild_id):
         return self._guilds.get(guild_id)
 
+    async def fetch_user(self, user_id):
+        return self._users.get(user_id)
+
 
 @pytest.fixture()
 def guild_objects():
@@ -60,6 +64,9 @@ def guild_objects():
     guild = Guild(guild_data, client_instance=bot)
     bot._guilds.set(guild.id, guild)
 
+    user = User({"id": "7", "username": "u", "discriminator": "0001"})
+    bot._users.set(user.id, user)
+
     member = Member(
         {
             "user": {"id": "3", "username": "m", "discriminator": "0001"},
@@ -86,12 +93,12 @@ def guild_objects():
     guild._members.set(member.id, member)
     guild.roles.append(role)
 
-    return guild, member, role
+    return guild, member, role, user
 
 
 @pytest.fixture()
 def command_context(guild_objects):
-    guild, member, role = guild_objects
+    guild, member, role, _ = guild_objects
     bot = guild._client
     message_data = {
         "id": "10",
@@ -114,7 +121,7 @@ def command_context(guild_objects):
 
 @pytest.mark.asyncio
 async def test_member_converter(command_context, guild_objects):
-    _, member, _ = guild_objects
+    _, member, _, _ = guild_objects
     mention = f"<@!{member.id}>"
     result = await run_converters(command_context, Member, mention)
     assert result is member
@@ -124,7 +131,7 @@ async def test_member_converter(command_context, guild_objects):
 
 @pytest.mark.asyncio
 async def test_role_converter(command_context, guild_objects):
-    _, _, role = guild_objects
+    _, _, role, _ = guild_objects
     mention = f"<@&{role.id}>"
     result = await run_converters(command_context, Role, mention)
     assert result is role
@@ -132,9 +139,19 @@ async def test_role_converter(command_context, guild_objects):
     assert result is role
 
 
+@pytest.mark.asyncio
+async def test_user_converter(command_context, guild_objects):
+    _, _, _, user = guild_objects
+    mention = f"<@{user.id}>"
+    result = await run_converters(command_context, User, mention)
+    assert result is user
+    result = await run_converters(command_context, User, user.id)
+    assert result is user
+
+
 @pytest.mark.asyncio
 async def test_guild_converter(command_context, guild_objects):
-    guild, _, _ = guild_objects
+    guild, _, _, _ = guild_objects
     result = await run_converters(command_context, Guild, guild.id)
     assert result is guild