Surname Semilio (Semilio 
) , in all the world, is a very rare last name. The cognomen Semilio is characteristic of Nicaragua, where it is a very rare surname, Brazil, where it is an extremely rare surname, and the United States. Very seldom, Semilio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Semilio | Brazil, Nicaragua, United States |