Cognomen Sanpang (Sanpang 
) , across the world, is a rare last name. The cognomen Sanpang is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, Philippines, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Thailand, Philippines, and Nigeria. Very seldom, Sanpang is the forename as well as the last name.