Family name Ruščák (Ruščák 
) , in the entire world, is a very rare cognomen. The surname Ruščák is characteristic of Eastern Europe, particularly Slovakia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ruščák | Slovakia |
| michal ruščák SK (b. 1933) |
|
|
| františek ruščák (b. 1941) |
|
|
| martin ruščák (b. 1961) |
|