Family name אהרו (Aaro 
, אהרו) , in the world, is a rare last name. The last name אהרו is characteristic of Northern Europe, particularly Norway, where it is quite a rare surname, Estonia, and Sweden. Not in comparison with a country's population, the name is most common in Sweden, the United States, and Norway. Likewise, אהרו is the forename as well as the last name.