Meaning and name origin
Constanza \c(o)-nstan-za, con-sta-nza\ as a girl's name is of Latin origin, and the meaning of Constanza is "constant, steadfast". Constanza is a variant of Constance (Latin): medieval form of Constantia used often in the early Christian and medieval eras, then by the Puritans (usually as Constant or Constancy).
Constanza is not a popular first name for females but a very popular surname or last name for all people (#38338 out of 88799, Top 43%) (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Constanza and its variant forms. The only popular variation form ranked in the Top 1000/100 is Constance. (2014 statistics).