What does Sigismundo mean?
Sigismundo \s(i)-gismun-do, sigi-smu-ndo\ as a name for boys is of Old German origin, and the meaning of the name Sigismundo is "victorious hand or protector". Sigismundo is a derivative of Sigmund (Old German).
Sigismundo is a rare given name for males. Sigismundo is a rare surname too for all people. (2000 U.S. Census)
Shown below is an analysis of the popularity of Sigismundo and associated names. Sigmund is the only prominent variation form of Sigismundo (#unlisted). Adoption of these boy names reached its peak during 1910-1919 (usage of 0.515%) and has become much less since, with Sigmund becoming less fashionable. (Top 1000 Baby Names Records, 2014)