| NACI | National Accreditation Center of Iran 
| Others |
| NACI | National Advisory Committee on Immunization
| Others |
| NACI | National Advisory Committees on Immunization
| Others |
| NACI | National Advisory Council on Innovation
| Others |
| NACI | National Agency Check and Written Inquiries
| Others |
| NACI | National Agency Check with Inquiries
| Others |
| NACI | National Agency for Communications and Informatics
| Others |
| NACI | National Asthma Control Initiative
| Others |
| NACI | Neepawa Area Collegiate Institute
| Others |
| NACI | NephCure Accelerating Cures Institute
| Others |
| NACI | North Albion Collegiate Institute
| Others |
| NACI | North America Commerce International
| Others |
| NACI | North American Collectors Inc
| Others |
| NACI | North American Conveyor Inc
| Others |