Cognomen กิจรัตน์ (Kitchrat 
, Kitrat 
, กิจรัตน์ ) , all over the world, is a very rare last name. The surname กิจรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. More frequently, กิจรัตน์ is the forename as well as the last name.