Sigismund
- Andrzej Sapkowski
- Austrian royal family Habsburg
- Burgundian language (Germanic)
- Czech language
- East Germanic languages
- German royalty
- Germanic name
- Gothic language
- High German languages
- Hungarian Royalty
- Hungarian language
- Ishak Bey Kraloğlu
- John Sigismund, Elector of Brandenburg
- Kingdom of the Burgundians
- La vida es sueño
- Latinisation of names
- Nigel Molesworth
- Polish language
- Prince Sigismund of Prussia (1864-1866)
- Prince Sigismund of Prussia (1896–1978)
- Proto-Germanic
- Romance languages
- Segimundus
- Serbo-Croatian
- Sigismund Albicus
- Sigismund Bachrich
- Sigismund Bacstrom
- Sigismund Bell
- Sigismund Báthory
- Sigismund Danielewicz
- Sigismund Ernst Hohenwart
- Sigismund Ernst Richard Krone
- Sigismund Felix Freiherr von Ow-Felldorf
- Sigismund Francis of Austria
- Sigismund Gelenius
- Sigismund Goldwater
- Sigismund I the Old
- Sigismund I, Prince of Anhalt-Dessau
- Sigismund II August
- Sigismund II, Prince of Anhalt-Dessau
- Sigismund III Vasa
- Sigismund Koelle
- Sigismund Korybut
- Sigismund Kęstutaitis
- Sigismund Mendl
- Sigismund Payne Best
- Sigismund Rákóczi
- Sigismund Streit
- Sigismund Zaremba
- Sigismund of Bavaria
- Sigismund of Brandenburg
- Sigismund of Burgundy
- Sigismund von Braun
- Sigismund von Götzen
- Sigismund von Herberstein
- Sigismund von Neukomm
- Sigismund von Reitzenstein
- Sigismund von Schlichting
- Sigismund von Schrattenbach
- Sigismund, Archduke of Austria
- Sigismund, Holy Roman Emperor
- Sigmund (given name)
- Sigmund Freud
- Slavic languages
- Slovak language
- Space Marines (Warhammer 40,000)
- Szlachta
- Tacitus
- The Horus Heresy (novels)
- The Witcher
- Warhammer 40,000
- Zikmund
- Zygmunt