Family name اربى (Arba 
, اربى 
) , all around the world, is quite a common cognomen. The cognomen اربى is characteristic of Romania, where it is quite a rare surname, Estonia, and Italy. Measured by absolute frequency, this name is the most popular in Indonesia, Italy, and Romania. Likewise, اربى is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arba | Algeria, Indonesia, Italy, Romania, Ethiopia |
| اربى | Iraq |