In the world, นิยรัตน์ (นิยรัตน์ 
) is a very rare largely female, but seldom masculine first name. The forename นิยรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare mostly feminine, but infrequently male name. Very seldom, นิยรัตน์ is the last name as well as the forename.