| Acronym | Definition |
|---|
| FTU | Foreign Trade University (Hanoi, Vietnam) |
| FTU | Flight Training Unit |
| FTU | Formal Training Unit |
| FTU | Flying Training Unit (USAF) |
| FTU | Federation of Trade Unions (Hong Kong) |
| FTU | Marillac (Madagascar airport code) |
| FTU | Fishing Tackle Unlimited (Texas) |
| FTU | Florida Technological University (now University of Central Florida) |
| FTU | Florida Times-Union (newspaper) |
| FTU | Forskning og Teknologisk Udvikling (Danish: research and technological development, aka: RTD) |
| FTU | Fitness Training Unit |
| FTU | Fiber Termination Unit (fiber optics) |
| FTU | Flight Test Unit |
| FTU | Fonds de Travaux Urbains (French: Urban Works Fund) |
| FTU | File Transfer Utility |
| FTU | Full Time Unit |
| FTU | Fleet Training Unit (US Navy) |
| FTU | Tensile Ultimate Stress (metals) |
| FTU | Female-to-Unknown (gender) |
| FTU | Fijnmechanische Techniek Utrecht (Dutch mechanical engineering company) |
| FTU | First Time User |
| FTU | Formazin Turbidity Unit |
| FTU | Finger Tip Unit (medication application) |
| FTU | Fault-Tolerant Unit |
| FTU | Field Technical Unit |
| FTU | Fixed Treatment Unit |
| FTU | Frederick Taylor University (est. 1994) |
| FTU | Field Torpedo Unit (US Navy) |
| FTU | French Tactical Unit (gaming clan) |
| FTU | Free Time Unlimited (Amazon) |
| FTU | First Training Unit |
| FTU | Freight Terminal Unit |
| FTU | Ferry Transport Unit |
| FTU | Fan Terminal Unit |