IFT
- Federal Telecommunications Institute
- I.F.T. (Breaking Bad)
- Implicit function theorem
- Independent Film Trust
- Information field theory
- Initial Flight Training
- Initiative for Free Trade
- Institute for Tourism Studies, Macao
- Institute of Food Technologists
- Interferential therapy
- International Federation of Translators
- Intraflagellar transport
- Inverse Fourier transform
- Inverse function theorem
- Irish Film Theatre
- List of Starship launches