OBBA
| 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 |