ITC
- Committee of Union and Progress
- ITC (company)
- ITC Enschede
- ITC Entertainment
- ITC Hotels
- ITC SRA Sangeet Sammelan
- ITC Sangeet Research Academy
- ITC Transmission
- Illinois Technical College
- Illinois Terminal Company
- Independent Television Commission
- Independent Transport Commission
- Indirect-threaded code
- Institute of Technology of Cambodia
- Institute of Technology, Carlow
- Institute of Texan Cultures
- Instituto Tecnológico de Córdoba
- Instrumental transcommunication
- Intechcentras
- Intelligence Technology Corporation
- Interagency Training Center
- Intercalated cells of the amygdala
- Interdenominational Theological Center
- International Teaching Centre
- International Teletraffic Congress
- International Test Commission
- International Theological Commission
- International Tin Council
- International Touring Car Championship
- International Trade Centre
- International Typeface Corporation
- Intertropical Convergence Zone
- Investment tax credit
- Ishikawa TV
- Isothermal titration calorimetry
- Isothiocyanate
- Israel Tennis Centers
- Offshore Racing Congress
- United States International Trade Commission
- Verbatim Corporation