| [A2542] | István Székely (1505 - 1565) | person | author, translator |
| [A1173] | Jan Szeliga (died ca 1637) | person | printer |
| [A2026] | Teofil Szemberg (died ca 1640) | person | designer |
| [A2192] | János Gergely Macer Szepsi (ca 1530 - after 1569) | person | author |
| [A290] | Krzysztof Szydłowiecki (1467 - 30 December 1532) | person | commissioner, dedicatee, represented actor |
| [A3089] | Mikołaj Szykwik (15th/16th c.) | person | |
| [A205] | Marcin Szyma | person | editor |
| [A1337] | Szymon of Lipnica (1438/1440 - 18 July 1482) | person | represented actor |
| [A181] | Szymon of Łowicz (ca 1512 - ca 1537) | person | author, compiler |
| [A1415] | Szymon Szymonowic (24 October 1558 - 5 May 1629 : fl. mid-16th c.) | person | author, represented actor |
| [A2657] | Konstanty Szyrwid (1578/1580 - 1631) | person | author |
| [A1837] | Marcin Szyszkowski (1554 - 1630) | person | author, dedicatee, represented actor |
| [A2954] | Sebastian Śleszkowski (1569/1576 - 1648) | person | |
| [A3461] | Jakub Śliwski (died 1630) | person | |
| [A2529] | Baltazar Śmieszkowic (died after 1685) | person | printer |
| [A2243] | Franciszek Śniadecki (17th c.) | person | publisher |
| [A1401] | Grzegorz Święcicki (1577 - 1617) | person | author, contributor |
| [A2557] | Paweł Świętkowic | person | compiler |
| [A3621] | Publius Cornelius Tacitus (ca 56 - ca 120) | person | |
| [A2453] | Tacitus (Roman emperor) (ca 200 - ca June 276) | person | represented actor |
