Cognomen Sonsing (Sonsing 
) , in the entire world, is a rare last name. The last name Sonsing is characteristic of Thailand, where it is a rare surname, Philippines, and France, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Philippines, Thailand, and India. More prevalently, Sonsing is the forename as well as the last name.