| Abbreviation | Definition |
|---|---|
| NSGA | Nova Scotia Golf Association |
| NZGC | New Zealand Golf Club |
| OAGA | Omaha Amputee Golf Association |
| ODGC | Ocean Dunes Golf Club |
| ODGC | Ottawa Disc Golf Club |
| OE | Old Etonian |
| OFCC | Olympia Fields Country Club |
| OG | Original Golfer |
| OGA | Ohio Golf Association |
| OGA | Oklahoma Golf Association |
| OGA | Oregon Golf Association |
| OGR | Oregon Golf Review |
| OGT | Online Golf Tour |
| OMGC | Ole Miss Golf Course |
| OPGA | Ohio Public Golf Association |
| OSGA | Oklahoma Senior Golf Association |
| OSGCC | Owen Sound Golf and Country Club |
| OVGA | Ohio Valley Golf Association |
| OVGA | Ottawa Valley Golf Association |
| OWGR | Official World Golf Ranking |