Surname Kapja (Kapja 
) , in the world, is a very rare last name. The surname Kapja is habitual in Southern Europe, particularly Albania, where it is quite a rare surname, and Spain, where it is an extremely rare surname. Much less frequently, Kapja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kapja | Spain, Albania, United States |