Surname Rojka (Rojka 
) , in the world, is a rare family name. The surname Rojka is habitual in Slovakia, where it is quite a rare surname, Czechia, and Serbia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rojka | Croatia, Slovakia, Serbia, United States, Czechia |
|
fritz rojka Austrian painter, 1878-1939, AT (b. 1878) |
|
| františek rojka CZ (b. 1895) |
|