| Acronym | Definition |
|---|
| OECM➣Office of Engineering and Construction Management (US DOE) |
| OECM➣Other Effective Area-Based Conservation Measures (biological diversity initiative) |
| OECM➣Ontario Education Collaborative Marketplace (Canada) |
| OECM➣Office of Enforcement and Compliance Monitoring |
| OECM➣Oviduct Epithelial Cell Monolayer (reproduction) |