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Cognomen Zam (Zam , زم , زام ) , worldwide, is a common family name. The family name Zam is habitual in Bhutan, where it is a widespread surname, Brunei, where it is quite a common surname, and Malaysia. In absolute terms, it is the most numerous in Indonesia, Bhutan, and Malaysia. Likewise, Zam is the forename as well as the last name.