Guadagni

Guadagni is a surname. Notable people with the surname include:


 * Bernardo Guadagni (1361–1434), Gonfalonier of Justice
 * Gaetano Guadagni (1728–1792), Italian mezzo-soprano castrato singer
 * Giovanni Antonio Guadagni (1674–1759), Italian Roman Catholic cardinal
 * Nicky Guadagni (born 1952), Canadian actress