GEC
- 10,000 gecs
- 100 gecs
- 1000 gecs
- Aleksandar Gec
- Gas emission crater
- General Electric Company
- General entertainment channel
- Glen Eira College
- Global Engagement Center
- Global Environment Centre
- Goa Engineering College
- Golden Empire Council
- Government Engineering College (disambiguation)
- Gran Enciclopèdia Catalana
- Greater Egyptian Conference
- Green Electronics Council
- Grounding electrode conductor
- Grêmio Esportivo Catanduvense
- Guild for Exceptional Children
- Lufthansa Cargo
- Mount GEC