Cognomen Souro (Souro 
) , around the globe, is a very rare family name. The last name Souro is characteristic of France, where it is a very rare surname, Argentina, where it is an extremely rare surname, and Brazil. Measured by absolute frequency, this name is the most popular in France, Brazil, and the United States. More frequently, Souro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Souro | Philippines, France, Brazil, United States, India |