| Acronym | Definition |
|---|
| TCI➣Therapeutic Crisis Intervention |
| TCI➣Touring Club Italiano |
| TCI➣Turks & Caicos Islands |
| TCI➣Texas Correctional Industries |
| TCI➣Tele-Communications, Inc. (est. 1968) |
| TCI➣To Come In (hospital appointments) |
| TCI➣Total Capital Investment |
| TCI➣Tungsten Carbide Insert (rollercone drillbit) |
| TCI➣Trade Credit Insurance |
| TCI➣Temperament and Character Inventory |
| TCI➣Transceiver Control Interface |
| TCI➣Turbo Charged Intercooler |
| TCI➣Trustworthy Computer Initiative |
| TCI➣Target Controlled Infusion |
| TCI➣Tree Climbers International |
| TCI➣Teachers' Curriculum Institute |
| TCI➣Transportation and Climate Initiative (coalition) |
| TCI➣Topical Calcineurin Inhibitor |
| TCI➣Tall Clubs International |
| TCI➣Telecommunication Company of Iran |
| TCI➣Technical Career Institute |
| TCI➣The Climate Institute (Australia) |
| TCI➣Tokyo Chemical Industry |
| TCI➣Tufts Climate Initiative |
| TCI➣The Catfish Institute |
| TCI➣Tribunal du Contentieux de l'Incapacité (French: Court Litigation for Disability; France) |
| TCI➣Tag Control Information |
| TCI➣Tourmaline Ceramic Ionic (hair dryer) |
| TCI➣Tobacco Control Initiative (Louisiana State University) |
| TCI➣Taycheedah Correctional Institution (Fond du Lac, Wisconsin) |
| TCI➣Trans-Cal Industries, Inc. (aviation; Van Nuys, CA) |
| TCI➣Telephone Collectors International |
| TCI➣Test & Calibration Instruments (Ametek) |
| TCI➣Tamastslikt Cultural Institute (Pendleton, OR) |
| TCI➣Trip-Cancellation Insurance |
| TCI➣Tax Consultants International (Netherlands) |
| TCI➣Theme Centered Interaction (Ruth Cohn communication method) |
| TCI➣Telecommunications Incorporated |
| TCI➣Tsukuba Center, Inc. (joint venture; Japan) |
| TCI➣Takeda Chemical Industries, Ltd (Japan) |
| TCI➣Training Center Instructor (software) |
| TCI➣Transportation Clubs International |
| TCI➣The Creative Investor |
| TCI➣Transit Capital Improvement |
| TCI➣Tenerife, Canary Islands, Spain - Tenerife Norte Los Rodeos (Airport Code) |
| TCI➣Teen Challenge International |
| TCI➣Team Canada Inc |
| TCI➣The Chubb Institute |
| TCI➣Trustworthy Computing Initiative (Microsoft) |
| TCI➣Tennessee Coal and Iron Company |
| TCI➣Total Countable Income |
| TCI➣Tree Classics, Inc. |
| TCI➣Turks & Caicos Airways (ICAO code) |
| TCI➣The Communications Institute (Los Angeles, CA) |
| TCI➣Telecom Cook Islands Ltd |
| TCI➣Tangent Computer, Inc. (California) |
| TCI➣Total Cost Indicators (UK) |
| TCI➣Tokyo Christian Institute (Tokyo, Japan) |
| TCI➣Tax Credit Incentive |
| TCI➣Truncated Channel Inversion |
| TCI➣Texture Coordinate Index (Microsoft DirectX) |
| TCI➣Texas Certified Investigator |
| TCI➣The Cheese Impresario (blog) |
| TCI➣Transport Conseil International (French: International Transport Council; Rouen, France) |
| TCI➣Travel Corporation of India, Ltd. |
| TCI➣Transistorised Coil Ignition |
| TCI➣Technology Confirmation/Innovation |
| TCI➣Tidewater Consultants, Inc. |
| TCI➣Time Change Item |
| TCI➣Terminal Command Identify |
| TCI➣Terrain Clearance Indicator |
| TCI➣Training Continuum Integration |
| TCI➣Transistorized Pointless Ignition |
| TCI➣Trajectory Computation Infrastructure |
| TCI➣Tire Cost Index |
| TCI➣Transaction Content Integration |
| TCI➣Technology Commercialization Initiative |
| TCI➣TELUS Communications Incorporated (Western Canada phone service) |
| TCI➣Terminal Communications Interface |
| TCI➣Toral Cast Integrated Technologies |
| TCI➣Teleconsult International |
| TCI➣Techni Concept Informatique (French: Techni Computer Concept; France) |
| TCI➣Twentieth Century Insurance |
| TCI➣Tuyauterie Calorifuge Isolation (French piping insulation) |