diff --git a/src/backend/core/api/serializers.py b/src/backend/core/api/serializers.py
index 525f2873..5894fa88 100644
--- a/src/backend/core/api/serializers.py
+++ b/src/backend/core/api/serializers.py
@@ -122,10 +122,14 @@ class RoomSerializer(serializers.ModelSerializer):
         if role is not None or instance.is_public:
             slug = f"{instance.id!s}".replace("-", "")
 
+            username = request.GET.get("username", None)
+
             output["livekit"] = {
                 "url": settings.LIVEKIT_CONFIGURATION["url"],
                 "room": slug,
-                "token": utils.generate_token(room=slug, user=request.user),
+                "token": utils.generate_token(
+                    room=slug, user=request.user, username=username
+                ),
             }
 
         output["is_administrable"] = is_admin
diff --git a/src/backend/core/api/viewsets.py b/src/backend/core/api/viewsets.py
index add59be3..e02bc63d 100644
--- a/src/backend/core/api/viewsets.py
+++ b/src/backend/core/api/viewsets.py
@@ -188,12 +188,15 @@ class RoomViewSet(
             if not settings.ALLOW_UNREGISTERED_ROOMS:
                 raise
             slug = slugify(self.kwargs["pk"])
+            username = request.query_params.get("username", None)
             data = {
                 "id": None,
                 "livekit": {
                     "url": settings.LIVEKIT_CONFIGURATION["url"],
                     "room": slug,
-                    "token": utils.generate_token(room=slug, user=request.user),
+                    "token": utils.generate_token(
+                        room=slug, user=request.user, username=username
+                    ),
                 },
             }
         else:
diff --git a/src/backend/core/tests/rooms/test_api_rooms_retrieve.py b/src/backend/core/tests/rooms/test_api_rooms_retrieve.py
index 6e21c86d..26c4ac54 100644
--- a/src/backend/core/tests/rooms/test_api_rooms_retrieve.py
+++ b/src/backend/core/tests/rooms/test_api_rooms_retrieve.py
@@ -111,7 +111,9 @@ def test_api_rooms_retrieve_anonymous_unregistered_allowed(mock_token):
         },
     }
 
-    mock_token.assert_called_once_with(room="unregistered-room", user=AnonymousUser())
+    mock_token.assert_called_once_with(
+        room="unregistered-room", user=AnonymousUser(), username=None
+    )
 
 
 @override_settings(ALLOW_UNREGISTERED_ROOMS=True)
@@ -141,7 +143,9 @@ def test_api_rooms_retrieve_anonymous_unregistered_allowed_not_normalized(mock_t
         },
     }
 
-    mock_token.assert_called_once_with(room="reunion", user=AnonymousUser())
+    mock_token.assert_called_once_with(
+        room="reunion", user=AnonymousUser(), username=None
+    )
 
 
 @override_settings(ALLOW_UNREGISTERED_ROOMS=False)
@@ -229,7 +233,7 @@ def test_api_rooms_retrieve_authenticated_public(mock_token):
         "slug": room.slug,
     }
 
-    mock_token.assert_called_once_with(room=expected_name, user=user)
+    mock_token.assert_called_once_with(room=expected_name, user=user, username=None)
 
 
 def test_api_rooms_retrieve_authenticated():
@@ -327,7 +331,7 @@ def test_api_rooms_retrieve_members(mock_token, django_assert_num_queries):
         "slug": room.slug,
     }
 
-    mock_token.assert_called_once_with(room=expected_name, user=user)
+    mock_token.assert_called_once_with(room=expected_name, user=user, username=None)
 
 
 @mock.patch("core.utils.generate_token", return_value="foo")
@@ -400,4 +404,4 @@ def test_api_rooms_retrieve_administrators(mock_token, django_assert_num_queries
         "slug": room.slug,
     }
 
-    mock_token.assert_called_once_with(room=expected_name, user=user)
+    mock_token.assert_called_once_with(room=expected_name, user=user, username=None)
diff --git a/src/backend/core/utils.py b/src/backend/core/utils.py
index 24921687..7055eae6 100644
--- a/src/backend/core/utils.py
+++ b/src/backend/core/utils.py
@@ -1,7 +1,7 @@
 """
 Utils functions used in the core app
 """
-import string
+from typing import Optional
 from uuid import uuid4
 
 from django.conf import settings
@@ -9,12 +9,14 @@ from django.conf import settings
 from livekit.api import AccessToken, VideoGrants
 
 
-def generate_token(room: string, user) -> str:
+def generate_token(room: str, user, username: Optional[str] = None) -> str:
     """Generate a Livekit access token for a user in a specific room.
 
     Args:
         room (str): The name of the room.
         user (User): The user which request the access token.
+        username (Optional[str]): The username to be displayed in the room.
+                         If none, a default value will be used.
 
     Returns:
         str: The LiveKit JWT access token.
@@ -38,10 +40,12 @@ def generate_token(room: string, user) -> str:
     ).with_grants(video_grants)
 
     if user.is_anonymous:
-        # todo - allow passing a proper name for not logged-in user
         token.with_identity(str(uuid4()))
+        default_username = "Anonymous"
     else:
-        # todo - use user's fullname instead of its email for the displayed name
-        token.with_identity(user.sub).with_name(f"{user!s}")
+        token.with_identity(user.sub)
+        default_username = str(user)
+
+    token.with_name(username or default_username)
 
     return token.to_jwt()