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Cognomen บุญค้ำ (Bunkham
, Boonkham
, บุญค้ำ) , around the globe, is a rare last name. The surname บุญค้ำ is habitual in Thailand, where it is a rare surname, the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, บุญค้ำ is the forename as well as the last name.