Cognomen เกียรติพจน์ (เกียรติพจน์ 
, Kiatipoj ) , around the globe, is a very rare last name. The last name เกียรติพจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, เกียรติพจน์ is the forename as well as the last name.