| Acronym | Definition |
|---|
| FLT | Fault |
| FLT | Flight |
| FLT | Flat |
| FLT | Filter |
| FLT | Fleet |
| FLT | Foundation for the Law of Time (Ashland, OR) |
| FLT | Faith, Love, and Trust |
| FLT | Friendship, Love and Truth (Independent Order of Odd Fellows) |
| FLT | Fork Lift Truck |
| FLT | Fédération Luxembourgeoise de Tennis (French: Luxembourg Tennis Federation; Luxembourg) |
| FLT | Fairlight (software cracking group) |
| FLT | Faculdade Luterana de Teologia (Portuguese: Lutheran School of Theology; Brazil) |
| FLT | Fuzzy Logic Toolbox |
| FLT | First Level Technology |
| FLT | Floating |
| FLT | File Lifecycle Tracking |
| FLT | Full Line Terminal |
| FLT | File Filter |
| FLT | Fermat's Last Theorem |
| FLT | Frontal Lobe Type |
| FLT | Freelancers Team |
| FLT | First Lieutenant |
| FLT | Foreign Language Teaching (education) |
| FLT | Float/Floating |
| FLT | Firstline Therapy (therapeutic lifestyle change program for chronic diseases of aging) |
| FLT | Finger Lakes Trail (footpath; New York) |
| FLT | Fermat's Little Theorem |
| FLT | Full Liner Terms (charter) |
| FLT | Full Length Transcript (genetics) |
| FLT | Full Load Torque |
| FLT | Flatbar |
| FLT | Fairfield Language Technologies |
| FLT | Full Line Terminal (Cisco) |
| FLT | Forest Leadership Team |
| FLT | Feels Like Today (song) |
| FLT | Funny Little Thing (OS bugs during Apollo G/S development) |
| FLT | Frequency Line Tracker |
| FLT | Firstline Trust (CIBC Mortgages and Lending subsidiary, Toronto, Canada) |
| FLT | Functional Level Test |
| FLT | Foothills Land Trust (est. 2002) |
| FLT | Friday Lunchtime Talk |
| FLT | Harley-Davidson Tour Glide motorcycle model |