Last name Matoas (Matoas 
) , throughout the world, is a very rare cognomen. The family name Matoas is habitual in Portugal, where it is a rare surname, Venezuela, where it is an extremely rare surname, and Argentina. In absolute terms, it is commonest in Portugal, Brazil, and Venezuela. Very seldom, Matoas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Matoas | Philippines, Brazil, Portugal, Argentina, Chile |