| Acronym | Definition |
|---|
| ONF | Office National du Film (Canada) |
| ONF | Office National des Forêts (French: National Forests Office) |
| ONF | Open Networking Foundation (various companies) |
| ONF | Ontario Neurotrauma Foundation |
| ONF | Orchestre National de France |
| ONF | Oncology Nursing Forum |
| ONF | Ocala National Forest (Florida) |
| ONF | Olympic National Forest (Washington state) |
| ONF | Ouachita National Forest (Arkansas and Oklahoma, USA) |
| ONF | Organische Natte Fractie |
| ONF | Ohio Nurses Foundation |
| ONF | Optimal Normal Form (database algorithm) |
| ONF | Oral/Nasal/Facial |
| ONF | Old North French |
| ONF | Oligonucleotide Fingerprinting |
| ONF | Open Navigation Format |
| ONF | Ovillos Neurofibrilares |
| ONF | Other Natural Flavors (band) |
| ONF | Oregon Nurses Foundation |
| ONF | Oral Nasal Fistula |
| ONF | Outpost Natural Foods (Wisconsin organic grocery stores) |
| ONF | Offender News Forum |
| ONF | Oddelenie Nových Fondov |
| ONF | Organisation Nomic Francophone |
| ONF | Our Naked Food (website) |