Last name Semaška (Semaška 
, Семашка 
) , in all the world, is a very rare surname. The cognomen Semaška is habitual in Lithuania, where it is quite a rare surname, Belarus, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Belarus, Lithuania, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Semaška | Lithuania |
| Семашка | Belarus, Kazakhstan, Russia, Ukraine |
|
darius semaška Lithuanian diplomat, LT (b. 1967) |
|
| bronius semaška LT (b. 1929) |
|
|
| algimantas semaška LT (b. 1941) |
|