1: Log in to the WHM.
2: Navigate to the SQL Services section (WHM >> Home >> SQL Services) and click phpMyAdmin.
3: In the left column, select the database that you wish to delete.
4: At the top of the interface, click Operations.
5: Under the Remove database heading, click Drop the database (DROP).
6: Click OK to confirm that you wish to delete the database.
7: If a cPanel user owned the database, navigate to cPanel’s MySQL® Databases interface and delete the database’s entry.