| NFAB | Nostalgia for a Belief (band; Athens, Greece) | 怀念信仰（乐队；希腊雅典） |
| NFAB | National Forest Advisory Board | 国家森林咨询委员会 |
| NFAB | NSE Facilities Administration Bureau | NSE设施管理局 |
| NFAB | National Firearms Act Branch | 国家火器法处 |
| NFAB | Nuclear Facilities Authorization Basis | 核设施授权依据 |
| NFAB | Near Field Adaptive Beamforming | 近场自适应波束形成 |
| NFAB | National Fingerprint Accreditation Board | 国家指纹认证委员会 |