Family name ไกรพจน์ (ไกรพจน์ 
, Kraipoj , Krachayphod ) , all over the world, is a rare last name. The surname ไกรพจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Also, ไกรพจน์ is the forename as well as the last name.