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In all the world, 單 (Toa , 單 , តួ ) is quite a rare largely boy's, but seldom feminine first name. The forename 單 is habitual in Cambodia, where it is quite a rare predominantly boy's, but very infrequently girly name, Australia, where it is a rare mostly boy's, but infrequently girly name, and Vietnam, where it is a rare principally masculine, but scarcely female name. In absolute terms, it is the most numerous in South-eastern Asia, particularly Cambodia, Indonesia, and Vietnam. Likewise, 單 is the last name as well as the forename.
單 is also a name for the fictitious and mythical characters: .