OMRS
| Acronym | Definition |
|---|---|
| OMRS | Orders and Medals Research Society (est. 1942; UK) |
| OMRS | Online Medical Reference System (University of Kansas Medical Center) |
| OMRS | Olympic Model Railroad Society (Washington) |
| OMRS | Operations and Maintenance Requirements and Specifications |
| OMRS | Office of Mental Retardation Services (Department of Mental Health, Mental Retardation and Substance Abuse; Virginia) |
| OMRS | Oral Mucosa Rating Scale |