Last name Madiaga (Madiaga 
) , in the world, is a rare family name. The last name Madiaga is characteristic of the Democratic Republic of the Congo, where it is a rare surname, South Africa, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Madiaga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Madiaga | Philippines, India, Nigeria, Democratic Republic of the Congo, South Africa |