| O&FS | Operations and Flight Support 
| Others |
| OFS | Fitel Salaries
| Others |
| OFS | Oakland Family Services
| Others |
| OFS | Object File Store
| Others |
| OFS | Object File System
| Others |
| OFS | Object Frenzy Show
| Others |
| OFS | Object Frontier Software
| Others |
| OFS | Ocean Futures Society
| Others |
| OFS | Octagon Financial Services
| Others |
| OFS | Offer For Sale
| Others |
| OFS | Office For Students
| Others |
| OFS | Office Furniture System
| Others |
| OFS | Office of Field Services
| Others |
| OFS | Office of Financial Stability
| Others |
| OFS | Office of Financial Systems
| Others |
| OFS | Office of Food Safety
| Others |
| OFS | Office of Oceanographic Facilities and Support
| Others |
| OFS | Officer Foundation System
| Others |
| OFS | OFS File Storage
| Others |
| OFS | Ohio's Future Stars
| Others |
| OFS | Oil Field Service
| Others |
| OFS | Oil Field Services
| Others |
| OFS | Old Fire Station
| Others |
| OFS | Old Flax Store
| Others |
| OFS | Olympia Film Society
| Others |
| OFS | One Finger Salute
| Others |
| OFS | One Found Sound
| Others |
| OFS | Online Freight Services
| Others |
| OFS | Opc Factory Server
| Others |
| OFS | Open File Server
| Others |
| OFS | Open File Support
| Others |
| OFS | Open File System
| Others |
| OFS | Open Financial Solutions
| Others |
| OFS | Open Framework System
| Others |
| OFS | Open From Start
| Others |
| OFS | Operation Food Search
| Others |
| OFS | Operation Fresh Start
| Others |
| OFS | Operational Fixed Service
| Others |
| OFS | Operational Forecast System
| Others |
| OFS | Opportunity for Sale
| Others |
| OFS | Opportunity Free State
| Others |
| OFS | Optical Fiber Sensor
| Others |
| OFS | Optical Fiber Sensors Topical Meeting
| Others |
| OFS | Optical Fiber Solutions
| Others |
| OFS | Optical Fiber System
| Others |
| OFS | Optical Fibre Sensors
| Others |
| OFS | Optical File System
| Others |
| OFS | Optical Filter Source
| Others |
| OFS | Optical Flow Switching
| Others |
| OFS | Oracle Fail Safe
| Others |
| OFS | Oral and Facial Surgery
| Others |
| OFS | Orange FoamShell
| Others |
| OFS | Orange Free State
| Others |
| OFS | Orbital Flight System
| Others |
| OFS | Orbiter Functional Simulator
| Others |
| OFS | Orbito-Frontal Syndrome
| Others |
| OFS | Ordine Francescano Secolare
| Others |
| OFS | Ordo Franciscanus Saecularis
| Others |
| OFS | Oregonians for Food and Shelter
| Others |
| OFS | Organic Fiber Sterilization
| Others |
| OFS | Organization for a Free Society
| Others |
| OFS | Original Future Sounds
| Others |
| OFS | Our Favorite Soprano
| Others |
| OFS | Our Finest Selection
| Others |
| OFS | Out F***ing Standing
| Others |
| OFS | Outlays Funding Services
| Others |
| OFS | Output Field Separator
| Others |
| OFS | Output File Separator
| Others |
| OFS | Ovarian Function Suppression
| Others |
| OFS | Over Feed Stop
| Others |
| OFS | Overseas Family School
| Others |
| OFS | Overseas Financial Services
| Others |