Last name اربا (Arba 
, Erba 
, اربا 
) , around the world, is a common surname. The family name اربا is habitual in Italy, where it is quite a rare surname, Romania, and Estonia. In absolute terms, it is the most numerous in Italy, Indonesia, and Ethiopia. Likewise, اربا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arba | Italy, Ethiopia, France, Romania, Indonesia |
| Erba | Italy, Ethiopia, India, France, Indonesia |
| اربا | Sudan |