OSBA
| Acronym | Definition |
|---|---|
| OSBA | Ohio State Bar Association (Columbus, Ohio) |
| OSBA | Ohio School Boards Association |
| OSBA | Oregon School Boards Association |
| OSBA | Office of Small Business Assistance (State of Florida) |
| OSBA | Ontario School Bus Association |
| OSBA | Office of the Small Business Advocate (South Australia) |
| OSBA | Ohio Small Business Association |
| OSBA | Ohio State Beekeepers Association |
| OSBA | Oregon State Beekeepers Association |
| OSBA | Oklahoma State Beekeepers' Association |
| OSBA | Optimal Scheduling and Buffer Allocation |