The Church of San Pedro de los Francos (Spanish: Iglesia de San Pedro de los Francos) is a church located on Via la Rua in Calatayud, Spain. It was declared Bien de Interés Cultural in 1875.^{[citation needed]}

The church was founded by Alfonso I el Batallador, after the Reconquista of Calatayud, to thank his French mercenary troops. The church was built in the 14th-century over an earlier temple. It has a typical Mudéjar structure of 3 naves and apses.

The entrance portal is Gothic in style with a peaked arch flanked by standing sculptures of St Peter and Paul, while the lintel has some awkwardly seated Christ (center), the Virgin and St John, all sheltered by a ledge with architecture.

Inside the main gilded Retablo at the high altar has Baroque Solomonic columns, and was completed in 1654. Other chapels include a retablo with Renaissance style panels. The various chapels include a virgin in a grotto.

The adjacent ancient mudejar tower leans over the street.^[1]

• List of Bien de Interés Cultural in the Province of Zaragoza