GTF
- Gallaher's Tobacco Factory
- Geared turbofan
- Gene transfer format
- General transcription factor
- Generalized Timing Formula
- Georgia Tech Foundation
- German Taekwondo Federation
- German Taxpayers Federation
- German Tennis Federation
- Global Tamil Forum
- Global Thinkers Forum
- Glucose tolerance factor
- Glycosyltransferase
- Graduate Theological Foundation
- Graphic Thought Facility
- Great Falls International Airport
- Green tree frog (disambiguation)
- Guam Telecommunications Facility