PTOS
| Acronym | Definition |
|---|---|
| PTOS | Patent and Trademark Office Society |
| PTOS | Paper-Tape Operating System |
| PTOS | Pennsylvania Trauma Outcome Study (Pennsylvania Trauma Systems Foundation; Mechanicsburg, PA) |
| PTOS | Peacetime Operating Stock |
| PTOS | Patriot Tactical Operations Simulation |
| PTOS | Parks, Trails, Open Space (space planning) |