Family name Řehka (Řehka 
) , all around the world, is a very rare cognomen. The cognomen Řehka is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Řehka | Czechia |
| josef řehka CZ (b. 1897) |
|
|
|
karel řehka Czech general, CZ (b. 1975) |
|
| josef řehka CZ (b. 1921) |
|