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). Seldom used as a boys' name.
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 this boy name reached its peak during 1910-1919 and has become much less since, with the form Sigmund becoming less fashionable. (Top 1000 Baby Names Records, 2014)