In all the world, Giai (Giai 
) is a rare epicene first name. The first name Giai is habitual in Italy, where it is a very rare gender-neutral name, Vietnam, where it is a very rare mostly boy's, but uncommonly girly name, and the United States. Likewise, Giai is the last name as well as the forename.
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đỗ kế giai South Vietnamese major general (1929–2016), VN (b. 1929) |
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| đỗ quang giai Vietnamese politician (1900-1972), VN (b. 1900) |
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| vũ văn giai (b. 1934) |
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| ba giai |
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