In all the world, Olcay (Olcay 
, Олджай 
) is a common gender-neutral first name. The given name Olcay is characteristic of Turkey, where it is quite a common gender-neutral name, Germany, where it is a rare principally masculine, but very seldom female name, and Nepal, where it is a rare masculine name. Much less frequently, Olcay is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Olcay | Australia, Germany, Turkey, Chile, Nepal |
| Олджай | Russia, Ukraine |
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özkan olcay Turkish businessman, TR (b. 1934) |
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olcay gülşen Turko-Dutch fashion designer, NL (b. 1980) |
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olcay şahan Turkish footballer, TR (b. 1987) |
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olcay çakır Turkish basketball player, TR (b. 1993) |
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| olcay poyraz actor, TR (b. 1943) |
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| olcay başarır Turkish association football player, TR (b. 1949) |
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| olcay kartari raçed TR (b. 1950) |
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| olcay kanmaz (b. 1957) |
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| olcay kavuzlu Turkish actor, TR (b. 1970) |
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| olcay toprak French taekwondo athlete, FR (b. 1973) |
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| olcay çetinkaya Turkish footballer, TR (b. 1979) |
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| olcay dilken researcher |
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| ali b olcay researcher |
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| olcay kandemir researcher |
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| olcay cem bulut researcher (ORCID 0000-0002-6999-2074) |
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