Cognomen บุญหา (Bunha 
, บุญหา , Boonha ) , around the world, is quite a rare last name. The family name บุญหา is habitual in Thailand, where it is a rare surname, India, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, บุญหา is the forename as well as the last name.