All around the world, J-Z (J-Z 
) is an extremely rare unknown gender first name. Very seldom, J-Z is the last name as well as the forename. Parts of the name also exists independently as a first name J, and a last name Z.
| VARIANT | COUNTRY |
|---|---|
| J-Z | France, Canada, Myanmar |
| j-z ren researcher (ORCID 0000-0001-9760-2750) |
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| j-z zhang researcher (ORCID 0000-0002-0757-4184) |
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| j-z ma researcher |
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| j-z tien researcher |
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| j-z zhang researcher (ORCID 0000-0003-3400-0044) |
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