TCI may refer to:

Locations

* Tenerife Airport (disambiguation), airport code of Tenerife International Airport (1964–1978), still used as a code for the island of Tenerife in general *

Turks and Caicos Islands The Turks and Caicos Islands (abbreviated TCI; and ) are a British Overseas Territory consisting of the larger Caicos Islands and smaller Turks Islands, two groups of tropical islands in the Lucayan Archipelago of the Atlantic Ocean and n ...

Medicine

Target controlled infusion Target-controlled infusion (TCI) automates the dosing of intravenous drugs during surgery. After the anesthetist Anesthesiology, anaesthesiology, or anaesthesia is the medical specialty concerned with the total perioperative care of patients b ...

, a method of administering general anaesthesia

Psychology

Temperament and Character Inventory The Temperament and Character Inventory (TCI) is an inventory for personality traits devised by Cloninger et al. It is closely related to and an outgrowth of the Tridimensional Personality Questionnaire (TPQ), and it has also been related to the d ...

(TCI) of personality traits * Theme centered interaction, a method for social learning in groups *

Therapeutic Crisis Intervention Therapeutic Crisis Intervention Also known as the abbreviation TCI is a crisis management protocol developed by Cornell University for residential child care facilities. The purpose of the TCI protocol is to provide a crisis prevention and interven ...

, protocol used in residential childcare facilities

Religion

Taoist Church of Italy The Taoist Church of Italy (TCI for short; in Italian language, Italian: ''Chiesa Taoista d'Italia'', "CTI" for short) is a religious body of Taoism established in 2013 by Vincenzo di Ieso, a fourteenth-generation Taoist master of the Xuanwu scho ...

, a confessional religious body of Taoism in Italy

Technology

*Tag Control Information, a data field in

IEEE 802.1Q IEEE 802.1Q, often referred to as Dot1q, is the networking standard that supports virtual local area networking (VLANs) on an IEEE 802.3 Ethernet network. The standard defines a system of VLAN tagging for Ethernet frames and the accompanying proc ...

VLAN tagging

Organizations and companies

Tall Clubs International Tall Clubs International (TCI) is a social organization in the United States and Canada, comprising over fifty independent Tall Clubs. The group says its mission is "to promote tall awareness among tall men and women, and in the community; to pro ...

, organization of clubs of tall people in North America *

Tele-Communications Inc. Tele-Communications, Inc. (TCI) was a cable television provider in the United States, and for most of its history was controlled by Bob Magness and John Malone. The company was started in 1958 in Bozeman, Montana as Western Microwave, Inc. and Co ...

, former US cable television company *

Telecommunication Company of Iran Telecommunication Company of Iran, or TCI ( fa, شرکت مخابرات ایران, romanized: ''Sherkat-e Moxaberat-e Iran''), is the fixed-line incumbent operator in Iran offering services in fixed telephony, DSL and data services for both resi ...

Televisione Cristiana in Italia Televisione Cristiana in Italia (TCI), also known as TBNE (Trinity Broadcasting Network Europe), is a free-to-air Italy, Italian Religious broadcasting#Television, religious TV channel headquartered in Marnate, Marnate, Italy. It was founded by Chu ...

, an Italian religious television channel *

Telus Communications Inc. Telus Communications Inc. (TCI) is the wholly owned principal subsidiary of Telus Corporation, a Canadian national telecommunications company that provides a wide range of telecommunications products and services including internet access, voi ...

, a Canadian telecommunications subsidiary of Telus Corporation * Tennessee Coal, Iron and Railroad Company, former steel manufacturer, Alabama, USA * Texas Correctional Industries, division of Texas Department of Criminal Justice, USA *

The Children's Investment Fund Management The Children’s Investment Fund Management (UK) LLP (TCI) is a London‐based hedge fund management firm founded by Chris Hohn in 2003 which manages The Children’s Investment Master Fund. TCI makes long‐term investments in companies globally ...

, UK hedge fund management *

Thistletown Collegiate Institute Thistletown Collegiate Institute (also called Thistletown C.I., T.C.I. or Thistletown) is a public high school in Toronto, Ontario, Canada. The school is located at the corner of Fordwich Crescent and Islington Avenue in the district of Etobicok ...

, a school in Toronto, Canada * Touring Club Italiano *

Toyota Canada Inc. Toyota Canada Inc. (TCI) is the distributor of Toyota and Lexus sedans, coupes, sport utility vehicles (SUVs), and trucks in Canada. TCI's head office is located in Toronto, Ontario. It has regional offices located in Vancouver, Calgary, Mont ...

* Transport Corporation of India Ltd *

Transportation and Climate Initiative The Transportation and Climate Initiative was a 2010 proposed interstate compact in the United States, which aimed to limit greenhouse gas emissions from motor vehicle fuel sources in the northeastern United States using a cap and trade system on wh ...

, a proposed interstate compact {{disambiguation