Cognomen Сперанца (Speranza 
, Сперанца 
) , worldwide, is a common last name. The surname Сперанца is characteristic of Italy, where it is quite a common surname, Argentina, where it is quite a rare surname, and Paraguay. Measured by absolute frequency, this name is the most popular in Italy, Argentina, and the United States. Very seldom, Сперанца is the forename as well as the last name.