| Acronym | Definition |
|---|
| IECC➣International Energy Conservation Code |
| IECC➣Intercultural E-Mail Classroom Connections |
| IECC➣Integrated Electronic Control Centre (UK Railways Signaling Control) |
| IECC➣International E-mail Chess Club (website) |
| IECC➣Informix Enterprise Command Center |
| IECC➣Interoperability Executive Customer Council (est. 2006) |
| IECC➣Invincible Electric Calculator Company |