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Cognomen บุญคำ (Bunkham , Boonkham , Boonkam ) , globally, is a rare family name. The family name บุญคำ is habitual in Thailand, where it is quite 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, บุญคำ is the forename as well as the last name.