Cognomen Černeckis (Černeckis 
, Чернецкис 
) , in the world, is a very rare surname. The family name Černeckis is habitual in Lithuania, where it is a rare surname, Belarus, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Černeckis | Lithuania |
| Чернецкис | Russia, Belarus |
| valerijonas černeckis LT (b. 1957) |
|
|
| antanas černeckis LT (b. 1959) |
|