| Acronym | Definition |
|---|
| FOT | Field of Testing (various organizations) |
| FOT | Festival of Trees (various organizations) |
| FOT | Fountain of Tears (band) |
| FOT | Flat on Top (configuration) |
| FOT | Future of Tomorrow (youth-led organizing group; Brooklyn, NY) |
| FOT | Front Office Transaction (various locations) |
| FOT | Fallout Tactics (gaming) |
| FOT | Font File |
| FOT | Forward Message Transfer |
| FOT | Fruit on Top |
| FOT | Feast of Tabernacles |
| FOT | Free On Truck |
| FOT | Follow-On Test |
| FOT | Flight Operations Team |
| FOT | Frequency, Offset and Tone (radio) |
| FOT | Follow-on Operational Test |
| FOT | Football Obsessed Teens (Nike Festival of Sports) |
| FOT | Fiber Optic Transceiver |
| FOT | Fall of Troy (band) |
| FOT | Finger-Operated Touchscreen |
| FOT | Full of Them |
| FOT | Forced Oscillation Technique (epidemiology) |
| FOT | Fantasy One Time (fantasy football) |
| FOT | Foreskins on Toast (military slang) |
| FOT | Fiber Optic Transmission |
| FOT | Forum Oilfield Technology (Houston, TX) |
| FOT | Fiber Optic Terminal (equipment) |
| FOT | Foyer Occupationnel et Thérapeutique (French: Occupational and Home Therapy) |
| FOT | Frequency of Optimum Transmission |
| FOT | Frequency of Optimum Traffic (ITS) |
| FOT | Fiber Optic Technology |
| FOT | Formation Ouverte de Tuteurs (French: Open Training Tutors) |
| FOT | Flight Operations Transmission |
| FOT | First-Order Test (qualitative research) |
| FOT | Friends of Tom |
| FOT | Free of Tax |
| FOT | Follow-On Training |
| FOT | Force on Target |
| FOT | Faucigny Outillage Technique (French technical tools company) |
| FOT | Fuel Oil Tank (maritime engineering) |
| FOT | Field Operations Test |
| FOT | First of Type |
| FOT | Form of Tender |
| FOT | Forecast Out Turn |
| FOT | Friends of Togo |
| FOT | French Overseas Territories |
| FOT | Forward Transfer (Message) (Signaling System #7) |
| FOT | Follow-On Terminal |
| FOT | Factory Outlet Trailers, Inc. (US and Canada) |
| FOT | Full Operational Test |
| FOT | Friends of Ted |
| FOT | Full Open Throttle (engine) |
| FOT | Field Operation Table |
| FOT | Frequency-Only Tracking |
| FOT | Force Options Testing |
| FOT | Flight Observation Team |
| FOT | Firm Order Terms (reinsurance) |
| FOT | Fællesoffentligt Geografisk Administrationsgrundlag (Copenhagen, Denmark) |
| FOT | Facilities Operations & Technology |
| FOT | Friend of the Telescope |
| FOT | Face-Offs Total (hockey) |
| FOT | Flash-Over Time |
| FOT | Fiber Optic Topology |
| FOT | Fifth-Order Theory |
| FOT | Forward Observer Team |
| FOT | First Off Tools (die or mold) |
| FOT | Friends of TOTUS (Teleprompter of the United States; blog) |