| Abbreviation | Definition |
|---|---|
| OFL | Operation FrontLine |
| OFL | Out For Lunch |
| OFLI | Other Force-Level Information |
| OFO | Oval Flying Object |
| OFOESA | Office of Field Operational and External Support Activities |
| OFP | Operation Flashpoint |
| OFP | Operational Flight Profile |
| OFP | Operational Flight Program |
| OFP | Oregon Fire Page |
| OFR | Out For Review |
| OFS | Officer Foundation System |
| OFSA | Objective Family of Small Arms |
| OFSY | Outstanding First Sergeant of the Year |
| OFT | Operation Fighting Tiger |
| OFT | Operational Feasibility Test |
| OFT | Operational Flight Trainer |
| OFW | Objective Force Warrior |
| OFW | Operation Frequent Wind |
| OFW | Overseas Filipino Workers |
| OGA | On Good Authority |