Last name Sedmák (Sedmák 
) , around the world, is a rare cognomen. The surname Sedmák is characteristic of Eastern Europe, particularly Slovakia, where it is quite a rare surname, and Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sedmák | Czechia, Slovakia |
| františek sedmák SK (b. 1922) |
|