OTRS
| Acronym | Definition |
|---|---|
| OTRS | Oklahoma Teachers' Retirement System |
| OTRS | Open Source Ticket Request System |
| OTRS | Ongoing Traumatic Relationship Syndrome (stress reaction) |
| OTRS | Oregon Telecommunications Relay Service (Public Utility Commission of Oregon) |
| OTRS | Operational Test Readiness Statement |
| OTRS | Officer Tertiary Recruitment Scheme (Australian Army) |