The three-letter acronym GEC may mean
- Government Engineering College, Jabalpur, located in Jabalpur, Madhya Pradesh, India
- Government Engineering College, Delhi, India
- Government Engineering College, Gandhinagar, Gandhinagar, India
- Goa Engineering College, Goa, India
- Government Engineering College, Barton Hill, Trivandrum
- Government Engineering College, Thrissur
- Government Engineering College, Wayanad
- Gwalior Engineering College, Gwalior, India
- General Electric Company plc, a former UK engineering company
- Gaylord Entertainment Center
- Gifted Education Centre
- Lufthansa Cargo (ICAO airline code)
- Giant Enemy Crab
- Global Economic Crisis
- Global Environment Centre
- Green Electronic Cigarettes
- Green Electronics Council
- General Entertainment Channel