西吉斯蒙德可以指：

• 西吉斯蒙德(Sigismund von Luxemburg)，神圣罗马帝国皇帝
• 西吉斯蒙德，外奥地利大公
• 齐格蒙特三世(Zygmunt III Waza)，波兰-立陶宛联邦国王，瑞典称为西吉斯蒙德（Sigismund)

Sigismund (variants: Sigmund, Siegmund) is a German proper name, meaning "protection through victory", from Old High German sigu "victory" + munt "hand, protection". Tacitus Latinises it Segimundus. There appears to be an older form of the High German word "Sieg" (victory): sigis, obviously Gothic and an inferred Germanic form, and there is a younger form: sigi, which is Old Saxon or Old High German sigu (both from about 9th century). A 5th century Prince of Burgundy was known both as Sigismund and Sigimund (see Ernst Förstemann, Altdeutsche Personennamen, 1906; Henning Kaufmann, Altdeutsche Personennamen, Ergänzungsband,1968).