Family name Ščasná (Ščasná 
) , all over the world, is a very rare last name. The surname Ščasná is habitual in Eastern Europe, particularly Slovakia, where it is quite a rare surname, and Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ščasná | Czechia, Slovakia |
| pavlína ščasná Czech footballer, CZ (b. 1982) |
|