Encyclopedias, Almanacs, Transcripts, and Maps
- southern lights
- Southern Methodist University
- Southern Morocco
- Southern Pacific Company
- Southern Rhodesia
- Southern University
- Southern Yemen
- Southfield
- Southgate
- Southington
- Sovern, Michael Ira
- Soviet Far East
- Soya Strait
- Soyer, Alexis Benoît
- Sozzini, Fausto
- Sozzini, Lelio
- space biology
- Space Infrared Telescope Facility
- space law
- space medicine