Family name อุทัยกาญจน์ (อุทัยกาญจน์ 
, Uthaikan ) , around the world, is a rare surname. The surname อุทัยกาญจน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, อุทัยกาญจน์ is the forename as well as the last name.