Cognomen Šliažas (Šliažas 
) , in all the world, is a very rare family name. The surname Šliažas is characteristic of Northern Europe, particularly Lithuania, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Šliažas | Lithuania |
| juozas šliažas Lithuanian engineer, LT (b. 1925) |
|