SMM
- Church of St. Mary Magdalene (Toronto)
- Master of Sacred Music
- Maxwell (microarchitecture)
- Musasa language
- OSCE Special Monitoring Mission to Ukraine
- Pointer machine
- S-Methylmethionine
- Santa Monica Mountains National Recreation Area
- Scattering-matrix method
- Science Museum of Minnesota
- Semporna Airport
- Sex Money Murda
- Single-molecule magnet
- Smoldering multiple myeloma
- Social media marketing
- Soft Magnetic Materials Conference
- Solar Maximum Mission
- Steenkampskraal Monazite Mine
- Stepwise mutation model
- Super Mario Maker
- System Management Mode