ITT
- Cousin Itt
- Fela Kuti
- Fuse (electrical)
- IT (disambiguation)
- IT2 (disambiguation)
- ITT Inc.
- ITT Semiconductors
- ITT Technical Institute
- Individual time trial
- Institute of Technology, Tallaght
- Institute of Technology, Tralee
- Insulin tolerance test
- Intensional type theory
- Intention to treat analysis
- Intermittent testicular torsion
- Intuitionistic type theory
- Invitation to tender
- Tank phone