Cognomen คำนุ้ย (Khumnui 
, คำนุ้ย, Kumnui) , all around the world, is a very rare surname. The cognomen คำนุ้ย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, คำนุ้ย is the forename as well as the last name.