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Worldwide, ثو (Thu , Tho , Thou ) is a widespread unisex given name. The first name ثو is characteristic of Mongolia, where it is a prevalent largely masculine, but infrequently girly name, Macao, where it is a common primarily girly, but scarcely masculine name, and Vietnam, where it is quite a common unisex name (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Mongolia, Vietnam, and the United States. More prevalently, ثو is the last name as well as the forename.
ثو is also a name for the fictitious and mythical characters: .