Cognomen Sumaza (Sumaza 
) , around the globe, is a rare surname. The last name Sumaza is habitual in Puerto Rico, where it is quite a rare surname, South Africa, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Sumaza is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumaza | Spain, United States, South Africa, Puerto Rico |