| Acronym | Definition |
|---|
| OBSL➣Old Bridge Soccer League (Old Bridge, NJ) |
| OBSL➣Olney-Bethesda Soccer League (Maryland) |
| OBSL➣Outward Bound-Sri Lanka |
| OBSL➣Online Backup Solutions Limited (UK) |
| OBSL➣Ohio Buckeye Speedskating League (Washington Courthouse, OH) |
| OBSL➣Orridge Business Sales Limited (UK) |