TEC
TEC may refer to:

Education
Technology, the subject itself of technology taught at schools
Tertiary Education Commission (disambiguation)
The East Carolinian, a campus newspaper of East Carolina University

Governmental and public organizations
The Episcopal Church (United States)
Telecommunication Engineering Center, an Indian government agency
Tsunami Evaluation Coalition, a coalition created to evaluate the response to the 2004 Indian Ocean earthquake
Transatlantic Economic Council, an agreement between the US and EU
Training and enterprise council, a former type of UK training program administrator
Topographic Engineering Center, former name of the US Army Geospatial Center
Treaty establishing the European Community, a former name for the principal EU Treaty
Transitional Executive Council, a government body that helped facilitate South Africa's transition to democracy in 1994

Military
TEC-3 or Technician third grade, United States Army rank
TEC-4 or Technician fourth grade, United States Army rank
TEC-5 or Technician fifth grade, United States Army rank
I.G. Brown Air National Guard Training and Education Center, Knoxville, Tennessee

People
Nechama Tec, Professor Emerita at the University of Connecticut
Roland Tec, American writer and movie director

Schools and colleges
Trichy Engineering College, in Konalai, Tamil Nadu, India
Costa Rica Institute of Technology
Monterrey Institute of Technology and Higher Education, in Monterrey, Mexico

Science, engineering and medicine
TEC (gene), a human gene
Thermoelectric cooling, a process to create a heat flux between two different materials
Time error correction (TEC)
Transient erythroblastopenia of childhood, a medical condition
Threshold Exceeds Condition, a value used in computer hard disk evaluation
Total electron content, a descriptive quantity of the Earth's ionosphere
Triethylcholine, a drug
TEC, a Russian abbreviation for thermal power stations in Russia and Soviet Union with combined heat and power plant

Other uses
Tech (river) (Catalan: Tec, in Pyrénées-Orientales département, southern France
TEC-9, a semi-automatic pistol
SV TEC, a Dutch association football club
Terik language (ISO 639:tec), spoken in Kenya
Toshiba TEC Corporation, a subsidiary of Toshiba
Tower en route control, a collection of air-traffic routes
TRACE Expert City, an office complex in Sri Lanka
Transport En Commun, a brand name of Belgian transport company Société Régionale Wallonne du Transport
Turkish Engine Center
Slang term for a detective