| Acronym | Definition |
|---|
| OGR | Office of Grants and Research (various organizations) |
| OGR | O Gauge Railroading (Magazine, model railroading) |
| OGR | Office of Government Relations |
| OGR | Off-Gas Recovery |
| OGR | Order of the Golden Rule |
| OGR | Old Growth Reserve (forestry) |
| OGR | Old Garden Rose |
| OGR | Optimal Golomb Ruler |
| OGR | Old Guys Rule |
| OGR | Open Grave Records (record label) |
| OGR | Office of Government Reports (US government) |
| OGR | OpenGIS Simple Features Reference Implementation |
| OGR | Ordnance, Gunnery and Readiness Division (US Navy) |
| OGR | Office of Geologic Repositories |
| OGR | Outgoing Repeater |
| OGR | Officer Grade Requirement(s) |
| OGR | Ordnance Gunnery and Readiness |
| OGR | Ogden Regional Medical Center (Ogden, UT) |
| OGR | Old Growth Riverwood (wood products; Wilmington, NC) |
| OGR | Old Glory Records |
