Family name Joao Sebastian (Joao Sebastian 
) , around the world, is an extremely rare cognomen. The surname Joao Sebastian is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. Predominantly, Joao Sebastian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Joao Sebastian | Costa Rica, Spain, Ecuador, Colombia, Chile |