Cognomen Exta (Exta 
, ต่อ, Экста 
) , all around the world, is a very rare last name. The surname Exta is characteristic of Kazakhstan, where it is a rare surname, Morocco, where it is a very rare surname, and Russia, where it is an extremely rare surname. More frequently, Exta is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Exta | India, France, Democratic Republic of the Congo, South Africa, Morocco |
| Экста | Kazakhstan, Russia, Ukraine |