TCI
TCI stands as an abbreviation for:
- Target Controlled Infusion , targeted infusion of drugs
- Tele-Communications Inc. , US provider of cable television
- Télévision Côte d'Ivoire , Ivorian TV station
- The Children's Investment Fund , a UK hedge fund
- Tool calling interface , see Profinet #Engineering
- Touring Club Italiano , Italian tourism organization
- Turks and Caicos Islands , British overseas territory in the Caribbean
