All over the world, Sydey (Sydey 
, Сидеы 
) is a very rare dominantly male, but infrequently girly first name. The forename Sydey is habitual in Sub-Saharan Africa, particularly South Africa, where it is a very rare mostly male, but seldom female name. Also, Sydey is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sydey | South Africa, Costa Rica, Nigeria, United States, Brazil |
| Сидеы | Russia |