- Sappho → Lyrici Graeci
- Scriptores Historiae Augustae → Historia Augusta
- Semonides of Amorgos → Lyrici Graeci
- Sesonchosis Romance → Novel (Greek), fragments of
- Sextus Iulius Africanus → Manetho of Sebennytus
- Shepherd of Hermas → Apostolic Fathers
- Simonides of Ceos → Lyrici Graeci
- Simplicius, Simplikios → Aristotle, commentators on; → Epictetus
- Solon → Lyrici Graeci
- Sophists → Gorgias of Leontini; → Presocratics
- Sophocles → Tragici Graeci
- Soranus of Ephesus → Caelius Aurelianus
- Stesichorus → Lyrici Graeci
- Strabo → Poseidonius
- Sulpicia → Tibullus, Albius
- Symmachus → Origenes
- Syncel…