- Schwarz triangle fanctim
- Schwassmann-Wachmann 1
- Schwassmann-Wachmann 2
- Schwassmann-Wachmann 3
- Schweikart
- Schweizer, Alexander Davydovich
- Schwenter
- Schwerin
- Schwetzingen Palace Gardens
- Schwinger
- Schwinger function
- Schwinger, Julian Seymour
- Schwinger mechanism
- Schäfke
- Schönflies symbol
- Schönflies symbol, Schoenflies symbol
- Schütte
- SCI
- sciadopitysin
- sciagraphy
- sciametry
- sciatic nerve
- sciceces of human settlements
- SCID
- Science