Surname Agusa (Agusa 
) , across the world, is a rare family name. The surname Agusa is habitual in Philippines, where it is a rare surname, Ethiopia, where it is a very rare surname, and Nigeria. Very seldom, Agusa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Agusa | Philippines, India, Indonesia, Ethiopia, Nigeria |