| Acronym | Definition |
|---|
| ACOI➣American College of Osteopathic Internists |
| ACOI➣Associazione Chirurghi Ospedalieri Italiani (Italian: National Congress of Italian Hospital Surgeons; Italy) |
| ACOI➣Association of Compliance Officers in Ireland (est. 2002) |
| ACOI➣Army Court of Inquiry (India) |
| ACOI➣American College of Oral Implantologists |