Family name Ignacio Sebastian (Ignacio Sebastian 
) , all over the world, is a rare surname. The last name Ignacio Sebastian is habitual in Chile, where it is quite a rare surname, and Spain, where it is a rare surname. More prevalently, Ignacio Sebastian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ignacio Sebastian | Spain, Argentina, Peru, Ecuador, Chile |