Family name Saosi (Saosi 
, เซ้าซี้) , all around the world, is a very rare cognomen. The surname Saosi is characteristic of Malaysia, where it is a very rare surname, Nigeria, and Thailand, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Nigeria, Malaysia, and India. Likewise, Saosi is the forename as well as the last name.