Surname Naisan (Naisan 
, นัยสันต์ ) , across the world, is a rare cognomen. The surname Naisan is habitual in Indonesia, where it is a rare surname, Norway, where it is a very rare surname, and the United States, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Indonesia, the United States, and India. Also, Naisan is the forename as well as the last name.