If you want to delete an album from Photos on a Mac, you’ll need to follow these steps:

  1. Open Photos.
  2. Choose the album you want to delete from the list of albums.
  3. Click the Delete button.
  4. Photos will ask if you want to save the album or delete it permanently. If you choose to delete it, Photos will create a new album for the deleted album and add it back into your photo library.