Cognomen Niyomporn (Niyomporn 
) , across the world, is an extremely rare family name. The cognomen Niyomporn is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Niyomporn is the forename as well as the last name.
Paopan, Thanoy, Nachai, Suiphonoi, Khunadilokjumnian, Thamvongsa, and Junthawong