Family name Sepong (Sepong 
) , all around the world, is a very rare cognomen. The family name Sepong is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname, Philippines, and Thailand, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Malaysia, Philippines, and India. More prevalently, Sepong is the forename as well as the last name.