Encyclopedias, Almanacs, Transcripts, and Maps
- Socialist Revolutionary party
- Socinus, Faustus
- Socinus, Laelius
- Sócrates Carvalho Pinto de Sousa, José
- Socrates Scholasticus
- sod house
- soda ash
- soda niter
- Söderberg, Hjalmar
- Söderhamn
- Söderström, Elisabeth Anna
- Södertälje
- Sodi
- sodium hydrate
- sodium hydrogen carbonate
- sodium tetraborate decahydrate
- sodium thiosulfate
- Soeharto
- Soemba
- Soembawa