Surname บุญยสิทธิ์ (บุญยสิทธิ์ 
) , around the world, is an extremely rare family name. The cognomen บุญยสิทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, บุญยสิทธิ์ is the forename as well as the last name.