| Acronym | Definition |
|---|
| NACI➣National Advisory Committee on Immunization (Canada) |
| NACI➣National Advisory Council on Innovation (South Africa) |
| NACI➣National Agency Check with Inquiries |
| NACI➣National Asthma Control Initiative (US DHHS) |
| NACI➣North Albion Collegiate Institute (Rexdale, Canada high school) |
| NACI➣North American Collectors, Inc (Encino, CA collection agency) |
| NACI➣New Apostles Church International |
| NACI➣Naval Avionics Center, Indianapolis |