Cognomen กุ๊กไก่ (Kookkai 
, กุ๊กไก่, Kookkaii) , all around the world, is a very rare family name. The surname กุ๊กไก่ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, กุ๊กไก่ is the forename as well as the last name.