ECBC may refer to:
- Energy Conservation Building Code, in India
- European Covered Bond Council, a financial organization
- Edgewood Chemical Biological Center, a research facility of the U.S. Army
- Ethnic Catholic Blue-Collar, a significant voting bloc in U.S. elections
- Exeter College Boat Club, an Oxford University college rowing club
- ECBC-MAC, a technique for constructing a message authentication code.