Surname อรรถกุล (อรรถกุล 
, Attakul 
, Autteakul ) , globally, is a rare cognomen. The last name อรรถกุล is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, อรรถกุล is the forename as well as the last name.