| Acronym | Definition |
|---|
| ISTF➣International Society of Tropical Foresters |
| ISTF➣Internet Science and Technology Fair |
| ISTF➣Industrial Science and Technology Frontier |
| ISTF➣Installed System(s) Test Facility |
| ISTF➣International Spring Trade Fair (Karachi, Pakistan) |
| ISTF➣International Surgical Thrombosis Forum |
| ISTF➣International Sepak Takraw Federation (athletic association) |
| ISTF➣Interface Simulation and Testing Framework (IONA) |
| ISTF➣Integrated Space Technology Flights |
| ISTF➣Integrated Systems Task Force |
| ISTF➣Ion Source Test Facility |
| ISTF➣Illumination System Transfer Function |