| 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) |