| Acronym | Definition |
|---|
| NACB | National Academy of Clinical Biochemistry |
| NACB | National Association of Cannabis Businesses (Milwaukee, WI) |
| NACB | Nigerian Agricultural and Cooperative Bank |
| NACB | North American Crane Bureau (Lake Mary, FL) |
| NACB | National Association of College Broadcasters (trade association for student radio and TV stations) |
| NACB | National Association of Commercial Broadcasters (Japan) |
| NACB | National Accreditation of Certification Bodies |
| NACB | Network Access Control Board (US NASA) |
| NACB | Non-Aligned Coordinating Bureau |