ITT can mean:
- ITT (network), a television network in Trinidad and Tobago
- ITT Corporation, a large conglomerate
- ITT Technical Institute
- Individual time trial, a racing term
- Institute of Technology, Tallaght
- Institute of Technology, Tralee
- Institute of Transport and Tourism, UCLAN, Preston[1]
- Intent to treat population, medical analysis
- "I think that", "in this thread" and/or "in this topic" see Internet slang
- Invitation to tender for a contract; see Tenders
- Cousin Itt, a member of the fictional Addams Family
- Inter turbine temperature
- Initial Teacher Training, a term used in the UK
