| Acronym | Definition |
|---|
| FOP | Fraternal Order of Police |
| FOP | Fundamentals of Planning (course) |
| FOP | Field of Play |
| FOP | Federal Operating Permit (various locations) |
| FOP | Fibrodysplasia Ossificans Progressiva |
| FOP | Factors of Production |
| FOP | Frequently Occurring Problem |
| FOP | Formatting Object Parser |
| FOP | Formatting Objects Processing |
| FOP | Fred. Olsen Production (Norway) |
| FOP | Fugitive Operations Program (est. 2003; US DHS) |
| FOP | Flash Operator Panel |
| FOP | Flowery Orange Pekoe |
| FOP | Framework of Partnership (various organizations) |
| FOP | Fairly Oddparents (cartoon) |
| FOP | Front of Pack (food labeling) |
| FOP | First-Order Perturbation (nuclear energy) |
| FOP | Form of Payment |
| FOP | Free Of Payment |
| FOP | Follow on Production (US NASA) |
| FOP | Formatting Object Processor |
| FOP | Feature Oriented Programming |
| FOP | Fibrodisplasia Osificante Progresiva (Spanish: Fibrodysplasia Ossificans Progressiva) |
| FOP | Friends of Police |
| FOP | Fédération Française des Producteurs d'Oléagineux et de Protéagineux (French) |
| FOP | Flight Operations Plan |
| FOP | Fresh Off the Plane |
| FOP | Federation of Planets (Star Trek) |
| FOP | Forward Observation Post |
| FOP | Financial Operating Plan |
| FOP | Full Order of Protection (law; various locations) |
| FOP | Finished Open Porch (building code) |
| FOP | Function Operation |
| FOP | Frank O. Pinion (St. Louis radio personality) |
| FOP | Field Operating Procedure |
| FOP | Formatting-Object Parser |
| FOP | Forecast Of Procurement |
| FOP | Optical Fibre Plate |
| FOP | Fountains of Paradise (Arthur C. Clarke novel) |
| FOP | Factory Order Processing |
| FOP | Found on Post (US DoD) |
| FOP | Fibre Optic Patch |
| FOP | Friends of Plaid |
| FOP | Furthest-On Point |