| Acronym | Definition |
|---|
| OADA➣Ohio Automobile Dealers Association (Dublin, OH) |
| OADA➣Oregon Athletic Directors Association |
| OADA➣Ontario Amateur Dancesport Association (est. 1991; Ontario, Canada) |
| OADA➣Oklahoma Automobile Dealers Association |
| OADA➣Operator Assistance Directory Assistance (telecommunications) |
| OADA➣offense-attrition, defense-attrition (military science) |