Where Does the Costanza Surname Come From?

The spelling Costanza grew out of Costanzo, an Italian surname with a long paper trail. Name scholars give the meaning as “Steadfast”.

Spelling and variants

Costanza and Costanzo differ only in the final vowel; Italian surnames often appear in both a singular and a plural form. Regional accents shaped spellings long before dictionaries fixed them. Related forms: Di Costanzo and Constant.

Costanza by the numbers

The Census Bureau's 2010 surname file lists Costanza with 3,137 bearers, at rank 10,278. From 1891 to 2000, 351 births in France were registered under Costanza.

Heraldry and the Costanza name

Arms linked to Costanzo and its spellings were granted to individual families; our heraldry team traces which line they belonged to.

Want more than a summary? See the Costanza family name pack.