1. Open YouTube Music.
2. Click the three dots next to the playlist name.
3. Select Edit playlist.
4. Enter a new name for the playlist.
5. Click Save.
On a mobile device:
1. Open the YouTube Music app.
2. Tap Library.
3. Tap Playlists.
4. Tap the three dots next to the playlist name.
5. Tap Edit playlist.
6. Enter a new name for the playlist.
7. Tap Done.