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Last name ล่ำซำ (Lamsam , ล่ำซำ) , all over the world, is a rare family name. The surname ล่ำซำ is habitual in Thailand, where it is a rare surname, New Zealand, and Australia, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Thailand, the United States, and Australia. Much less frequently, ล่ำซำ is the forename as well as the last name.