Surname อังคสิทธิ์ (อังคสิทธิ์ 
) , in all the world, is a very rare family name. The last name อังคสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, อังคสิทธิ์ is the forename as well as the last name.