Family name Thap (Thap 
, ทับ , ทัพ ) , in all the world, is quite a rare cognomen. The surname Thap is habitual in Nepal, where it is quite a rare surname, Qatar, and Malaysia, where it is a rare surname. In absolute terms, it is the most numerous in India, Nepal, and Vietnam. Also, Thap is the forename as well as the last name.