Cognomen Setho (Setho 
, เสธ., เสโท 
) , across the world, is a rare surname. The surname Setho is characteristic of Lesotho, where it is quite a common surname, South Africa, where it is a rare surname, and Singapore. Not in comparison with a country's population, the name is most common in Lesotho, South Africa, and Pakistan. Also, Setho is the forename as well as the last name.