Worldwide, Войка (Войка 
, Vojka 
, Voika 
) is quite a rare female first name. The given name Войка is habitual in Bulgaria, where it is quite a common girly name, Croatia, where it is quite a rare feminine name, and Slovenia. Not in comparison with a country's population, the name is most common in Bulgaria, Croatia, and Serbia. Also, Войка is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Войка | Kazakhstan, Russia, Bulgaria, Ukraine |
| Vojka | Serbia, Croatia, Slovenia, Albania, North Macedonia |
| Voika | Latvia, Australia, Estonia, United States, Italy |
| Voyka | New Zealand, Australia, Mexico, United States |