Surname Etera (Etera 
, Этера 
, Етера 
) , in the entire world, is a very rare last name. The cognomen Etera is habitual in Georgia, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and India. More frequently, Etera is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Etera | France, India, United States, Nigeria, Turkey |
| Этера | Russia, Kazakhstan |
| Етера | Russia, Ukraine |