Family name กล้าม (Klam 
, กล้าม, Klaaopai 
) , globally, is quite a rare last name. The last name กล้าม is characteristic of Oman, where it is quite a rare surname, Hungary, and Saudi Arabia. In absolute terms, it is the most numerous in India, Saudi Arabia, and Germany. Very seldom, กล้าม is the forename as well as the last name.