Cognomen ערו (Arow 
, ערו 
) , in all the world, is a rare family name. The cognomen ערו is habitual in Israel, where it is a rare surname, Egypt, where it is a very rare surname, and Indonesia. Also, ערו is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arow | Egypt, Malaysia, Indonesia, Myanmar, India |
| ערו | Israel |