diff --git a/server/config/bbb.js b/server/config/bbb.js
index 4a9ff82..7f49d8f 100644
--- a/server/config/bbb.js
+++ b/server/config/bbb.js
@@ -74,7 +74,7 @@ export async function createMeeting(room, logoutURL, loginURL = null, presentati
 
   const params = {
     meetingID: room.uid,
-    name: room.name,
+    name: room.name.length >= 2 ? room.name : room.name.padEnd(2, ' '),
     attendeePW,
     moderatorPW,
     welcome,
diff --git a/server/routes/rooms.js b/server/routes/rooms.js
index 0261d9c..b35d550 100644
--- a/server/routes/rooms.js
+++ b/server/routes/rooms.js
@@ -166,6 +166,9 @@ router.post('/', authenticateToken, async (req, res) => {
     if (!name || name.trim().length === 0) {
       return res.status(400).json({ error: 'Room name is required' });
     }
+    if (name.trim().length < 2) {
+      return res.status(400).json({ error: 'Room name must be at least 2 characters' });
+    }
 
     // M7: field length limits
     if (name.trim().length > 100) {
@@ -243,6 +246,9 @@ router.put('/:uid', authenticateToken, async (req, res) => {
     } = req.body;
 
     // M12: field length limits (same as create)
+    if (name && name.trim().length < 2) {
+      return res.status(400).json({ error: 'Room name must be at least 2 characters' });
+    }
     if (name && name.trim().length > 100) {
       return res.status(400).json({ error: 'Room name must not exceed 100 characters' });
     }
diff --git a/src/pages/Dashboard.jsx b/src/pages/Dashboard.jsx
index d5f7eab..4c1a9b4 100644
--- a/src/pages/Dashboard.jsx
+++ b/src/pages/Dashboard.jsx
@@ -205,6 +205,7 @@ export default function Dashboard() {
                 className="input-field"
                 placeholder={t('dashboard.roomNamePlaceholder')}
                 required
+                minLength={2}
               />
             </div>
 
diff --git a/src/pages/RoomDetail.jsx b/src/pages/RoomDetail.jsx
index 3b22ae8..14e2c98 100644
--- a/src/pages/RoomDetail.jsx
+++ b/src/pages/RoomDetail.jsx
@@ -502,6 +502,7 @@ export default function RoomDetail() {
               onChange={e => setEditRoom({ ...editRoom, name: e.target.value })}
               className="input-field"
               required
+              minLength={2}
             />
           </div>