Globally, Sebastian Maximiliano (Sebastian Maximiliano 
) is a rare masculine first name. The forename Sebastian Maximiliano is habitual in Latin America and the Caribbean, particularly Chile, where it is quite a rare boy's name, and Argentina, where it is a very rare masculine name. Much less frequently, Sebastian Maximiliano is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sebastian Maximiliano | Peru, Chile, Ecuador, Argentina |