SMF
- 5-Sulfoxymethylfurfural
- Faithful Majesty
- Mineral wool
- Sacramento International Airport
- Sanjukta Mukti Fouj
- Sankat Mochan Foundation
- Santa Maria da Feira Municipality
- Scottish Miners' Federation
- Senckenberg Museum
- Service Management Facility
- ShadowMachine Films
- Sick Mother Fakers
- Simple Machines Forum
- Single-mode optical fibre
- Site Master File
- Social Market Foundation
- Société Mathématique de France
- Société mycologique de France
- Somaly Mam Foundation
- Special Mobile Force
- Standard MIDI File
- Stone Metal Fire
- Svenska Musikerförbundet
- System Management Facilities