A.S. Cittadella is an italian association football club founded in 1973.
Cittadella was founded in 1973, after the merger of U.S. Cittadellense and A.S. Olympia. The club spent most of its first years in amateur football, and then professional football at Serie C2 and Serie C1. Cittadella won its first promotion to Serie B in 1999 after defeating Brescello in the playoff finals, and spent a total two seasons in the Italian second-highest ranked division, being then relegated in 2001–02 Serie B During their first stay in Serie B, the club played in Stadio Euganeo in Padua and, in an attempt to expand the fanbase, was renamed A.S. Cittadella Padova, Padua (Padova in Italian.