- DMEC stands for Disability Management Employer Coalition (San Diego, CA)
- DMEC stands for Data Monitoring and Ethics Committee (clinical data; UK)
- DMEC stands for Dunedin Multi-Ethnic Council (New Zealand)
- DMEC stands for Developed Market-Economy Countries (United Nations Conference on Trade and Development)
- DMEC stands for DeQueen-Mena Education Cooperative (Gillham, AR)
- DMEC stands for Deep Layers of Medial Entorhinal Cortex (neurology)
- DMEC stands for Dry Mateable Electric Connection
DMEC