Cognomen Spaja (Spaja 
) , in all the world, is a very rare last name. The family name Spaja is characteristic of Albania, where it is quite a rare surname, Germany, where it is a very rare surname, and Spain. Very seldom, Spaja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Spaja | Germany, India, Spain, Albania |