Surname Ištvánek (Ištvánek 
) , globally, is a very rare last name. The surname Ištvánek is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ištvánek | Czechia |
| bohumil ištvánek CZ (b. 1928) |
|
|
| jaromír ištvánek (b. 1931) |
|
|
| jan ištvánek (b. 1942) |
|
|
| josef ištvánek (b. 1944) |
|