| Acronym | Definition |
|---|
| MCEC➣Military Child Education Coalition |
| MCEC➣Melbourne Convention and Exhibition Centre (Australia) |
| MCEC➣Measurement and Control Engineering Center |
| MCEC➣Mennonite Conference of Eastern Canada |
| MCEC➣Mission Command Essential Capabilities (US Army) |
| MCEC➣Monroe County Electric Co-Operative, Inc. |
| MCEC➣Math, Computing and Engineering Center (Trinity College; Hartford, CT) |
| MCEC➣Maricopa County Events Center (formerly Sun Dome; Sun City West, AZ) |
| MCEC➣Marine Corps Engineer Center (US Marine Corps) |