| Acronym | Definition | 
|---|
| AARO➣Association of Americans Resident Overseas | 
| AARO➣Austin Area Research Organization (Austin, TX) | 
| AARO➣Automotive Aftermarket Retailers of Ontario | 
| AARO➣Alamo Area Radio Organization (Texas) | 
| AARO➣Area Amateur Radio Operators (Illinois and Iowa) |