SNF
- ESPN Sunday Night Football
- NBC Sunday Night Football
- National League of Sweden
- Neurotransmitter sodium symporter
- SNF Floerger
- Saturday Night Football (UK TV programme)
- Server Normal Format
- Shenfield railway station
- Skilled nursing facility
- Smith normal form
- Somali National Front
- Spent nuclear fuel
- Stavros Niarchos Foundation
- Sub Teniente Nestor Arias Airport
- Swiss National Science Foundation