Encyclopedias, Almanacs, Transcripts, and Maps
- Scotch broom
- Scott, Duncan Campbell
- Scott, Hugh Lenox
- Scott, James Brown
- Scottish Gaelic language and literature
- Scotts Bluff National Monument
- Scottsbluff
- Scotus
- scramjet
- screwpine
- screwworm
- Scribner, Charles
- Scripps College
- Scripps Institution of Oceanography
- scrod
- Scruggs, Earl Eugene
- scuba
- Scudder, Janet
- sculling
- scup