A.C. Pisa 1909

Associazione Calcio Pisa 1909 (formerly Pisa Calcio) is an Italian association football club, based in Pisa, Tuscany.

The club was founded in 1909 as Pisa Sporting Club and refounded in 1994 as Pisa Calcio (and registered in Eccellenza, the sixth football division in Italy), after the cancellation of the former because of economical troubles. It was excluded again from Italian football in 2009, after the property failed to collect enough money to pay off the club's debts. In summer 2009 it was refounded with the current denomination.

Pisa has won two Mitropa Cups, in 1986 and 1988. They play their home matches at Arena Garibaldi - Stadio Romeo Anconetani, named after Romeo Anconetani, the chairman who brought and led the club in Serie A during the 1980s.

At the end of the 2008 season, Pisa lost to U.S. Lecce in a two-legged promotion playoff final to Serie A. The team currently plays in Serie B.