- DMCI stands for Downtown Moncton Centre-Ville, Inc. (Canada)
- DMCI stands for Don Mills Collegiate Institute
- DMCI stands for Daniel McIntyre Collegiate Institute (Canada)
- DMCI stands for Data Management Consultants Inc. (Beaverton, OR)
- DMCI stands for Denise Meridith Consultants, Inc. (Phoenix, AZ)
- DMCI stands for Draeger Medical Canada, Inc. (Richmond Hill, Ontario, Canada)
- DMCI stands for Digital Media and Creative Industries Team (Scottish Parliament; UK)
DMCI