Cognomen Gigja (Gigja 
) , around the world, is a very rare surname. The surname Gigja is characteristic of Northern Europe, particularly Iceland, where it is quite a common surname, Sweden, where it is a rare surname, and Norway, where it is a very rare surname. Also, Gigja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gigja | Norway, Sweden, Iceland, United Kingdom, India |