Around the world, Gencay (Gencay 
, Генджай 
) is quite a rare boy's first name. The first name Gencay is characteristic of Turkey, where it is quite a rare boy's name, Germany, where it is a very rare masculine name, and China, where it is an extremely rare male name. Very seldom, Gencay is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gencay | Turkey, Germany, China, Romania, United States |
| Генджай | Russia, Ukraine |
| gencay gürün Turkish artist, TR (b. 1932) |
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| gencay kasapçı Turkish artist (1933–2017), TR (b. 1933) |
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| gencay hatiboglu researcher (ORCID 0000-0003-0913-8420) |
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| gencay kıymaz Turkish musician, TR (b. 1987) |
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| yilmaz emre gencay researcher |
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