Cognomen อรรถพันธุ์ (อรรถพันธุ์ 
) , around the globe, is a very rare surname. The cognomen อรรถพันธุ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, อรรถพันธุ์ is the forename as well as the last name.