RTOS
| Acronym | Definition |
|---|---|
| RTOS | Real-Time Operating System |
| RTOS | Real Time Operating System |
| RTOS | Reconfigurable Tactical Operations Simulator |
| RTOS | Rochester Theater Organ Society (est. 1964; Rochester, NY) |
| RTOS | Reform Temple of Suffern (Suffern, NY) |
| RTOS | Reoriented Tactical Operations System |