| Acronym | Definition |
|---|
| OSTF➣Other Side of the Fence |
| OSTF➣Oregon Short Term Fund |
| OSTF➣Oberlin Summer Theater Festival (Oberlin, OH) |
| OSTF➣Original Sovereign Tribal Federation (Australia) |
| OSTF➣Old Spanish Trail Festival (Crestview, FL) |
| OSTF➣Object Services Task Force (Object Management Group) |
| OSTF➣off-site treatment facility |
| OSTF➣Orthogonal Short-Time Fourier |
| OSTF➣Online Safety Task Force (Vermont) |