- ACMI stands for American Community Mutual Insurance (Michigan)
- ACMI stands for Aircraft, Crew, Maintenance and Insurance (wet lease)
- ACMI stands for Art & Creative Materials Institute
- ACMI stands for Air Combat Maneuvering Instrumentation
- ACMI stands for American College of Medical Informatics
- ACMI stands for Australian Center for the Moving Image
- ACMI stands for American Cystoscope Makers, Inc.
- ACMI stands for Association of Christians Ministering among Internationals
- ACMI stands for Active CounterMeasures Instructional
- ACMI stands for Adult Children of the Mentally Ill
- ACMI stands for Associate, Chartered Management Institute (UK)
- ACMI stands for Automatic Crystallographic Map Interpretation (software)
- ACMI stands for Advanced Custom Made Implants (University Hospital, Pellenberg, Belgium; hip prostheses)
- ACMI stands for Agents Chargés d’une Mission d’Inspection (French)
- ACMI stands for Assocostruttori Chiusure e Meccanismi Italia (Association of Italian Manufacturers of Doors and their Components)
- ACMI stands for American College of Medical Informatimusicology (blog)
- ACMI stands for Arlington Community Media Incorporated (Arlington, MA)
ACMI