Family name ฤทัยพัชร์ (ฤทัยพัชร์ 
, Rutaipach ) , all around the world, is an extremely rare surname. The family name ฤทัยพัชร์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much less frequently, ฤทัยพัชร์ is the forename as well as the last name.