In the world, Tử (Tử 
) is a rare gender-neutral forename. The first name Tử is habitual in South-eastern Asia, particularly Vietnam, where it is a rare epicene name. Likewise, Tử is the last name as well as the forename.
| chu tử Vietnamese journalist and writer, VN (b. 1917) |
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| giang tử VN (b. 1944) |
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