Surname Sunsi (สุนทรีย์ 
, Sunsi 
, سونسي) , in the world, is a very rare family name. The cognomen Sunsi is characteristic of Nigeria, where it is a very rare surname, Argentina, and Spain, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Nigeria, India, and Argentina. Predominantly, Sunsi is the forename as well as the last name.