| Acronym | Definition |
|---|
| CNF | Conference |
| CNF | Configuration (File Name Extension) |
| CNF | Conjunctive Normal Form |
| CNF | Could Not Find |
| CNF | Creative Nonfiction (also known as literary or narrative nonfiction) |
| CNF | Canadian Nature Federation |
| CNF | Chin National Front (Burma) |
| CNF | Cornell NanoScale Facility |
| CNF | Canadian Nurses Foundation |
| CNF | Confine |
| CNF | Chomsky Normal Form (formal language theory) |
| CNF | Cytotoxic Necrotizing Factor |
| CNF | Cost and Freight |
| CNF | Consolidated Freightways, Inc. (stock symbol) |
| CNF | Canadian Neutron Facility (proposed replacement reactor for the NRU research reactor in Chalk River Ontario) |
| CNF | Chugach National Forest (US Forest Service) |
| CNF | Canadian Nutrient File |
| CNF | Cámara Nacional Forestal |
| CNF | Commonwealth Nurses Federation (UK) |
| CNF | Consejo Nacional de la Fauna |
| CNF | Cold Nuclear Fusion |
| CNF | Central Neutralization Facility |
| CNF | Child Neurology Foundation |
| CNF | Belo Horizonte /Belo Horizon, Minas Gerais, Brazil Aeropuerto Internacional Tancredo Neves (Airport Code) |
| CNF | City of Niagara Falls |
| CNF | Computer and Network Forensics |
| CNF | California Nurses Foundation (Oakland, California) |
| CNF | Computer Navigation Fix |
| CNF | Cercle Nautique de France |
| CNF | Cost No Fee (contract) |
| CNF | Commander Naval Forces |
| CNF | California Nigerian Forum |
| CNF | Club Nacional de Football (Uruguay; national soccer team) |
| CNF | Congenital Nephrosis Finnish |
| CNF | Cornell Nanofabrication Center (Ithica, NY) |
| CNF | Constant Noise Figure (amplifiers) |
| CNF | Computational Network Federation |
| CNF | Carbon Neutral Fuel (energy) |