Last name Siarra (Siarra 
) , globally, is a rare family name. The family name Siarra is habitual in Mali, where it is a rare surname, Argentina, and Greece. In absolute terms, this name is the most popular in Argentina, Mali, and Tanzania. Also, Siarra is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siarra | Mali, Tanzania, Greece, United States, Argentina |