| Acronym | Definition |
|---|
| OBBA➣Ohio Business Brokers Association (est. 1987) |
| OBBA➣Ohio Bed and Breakfast Association (trade association) |
| OBBA➣Ontario Bird Banding Association |
| OBBA➣Ohio Bird Banding Association |
| OBBA➣Oklahoma Breeding Bird Atlas (publication; University of Oklahoma Press) |
| OBBA➣Oregon Breeding Bird Atlas |