- Stefano, Niccolò di1
- Stefano, Simone di1
- Stencilled initials1
- Stephen, Saint, -approximately 362
- Stephen, the Younger, Saint, 713 or 714-7641
- Stilicho, Flavius, -4081
- Stirton, John, 1871-19441
- Stoddard, Anthony, 1678-17601
- Stoics1
- Storytelling2
- Strozzi, Giovanni2
- Strozzi, Nanni, 1376-14271
- Strozzi, Niccolò1
- Stuart, House of1
- Style manuals2
- Stūpas4
- Subkī, Taqī al-Dīn ʻAlī ibn ʻAbd al-Kāfī, 1284-13551
- Subkī, Taqī al-Dīn ʻAlī ibn ʻAbd al-Kāfī, 1284-1355. Tāʼīiyah1
- Substance (Philosophy)1
- Sudan--Kordofan (Province)1