Family name Gaston Omar (Gaston Omar 
) , in all the world, is a very rare surname. The last name Gaston Omar is habitual in Chile, where it is a rare surname, and Spain, where it is a very rare surname. More frequently, Gaston Omar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gaston Omar | Uruguay, Spain, Argentina, Ecuador, Chile |