ACMI

ACMI may refer to:


 * A Certain Magical Index, a Japanese light novel series
 * Air Combat Maneuvering Instrumentation, a set of systems that record an aircraft's in-flight data during weapon range operations
 * American College of Medical Informatics, a college of elected fellows who have made significant and sustained contributions to the field of medical informatics
 * ACMI (Australian Centre for the Moving Image), an Australian institution dedicated to the moving image in all its forms
 * Art & Creative Materials Institute, Inc., an industry trade group composed of companies that manufacture art materials
 * Aircraft, Crew, Maintenance and Insurance, a type of lease contract used in aviation, more commonly known as a Wet lease
 * Archdiocesan Commission for the Pastoral Care of Migrants and Itinerant People, a non-profit social service organization in Singapore