San Sigismondo is a Roman Catholic religious complex in Cremona, northern Italy.
The monastery was founded on 10 June 1463 to celebrate the union between the previously rival families of the Visconti and the Sforza, who had contended for the rule in the Duchy of Milan.
An inscription near the high altar reads: "Here Francesco Sforza, Duke of Milan, joined in marriage Biancamaria daughter of Filippo Visconti: this as habit it meant, and with the word and the ring in the year 1447".
The church has a façade divided in two storeys by an entablature supported by four fake columns in Doric style, which are surmounted by a tympanum and five small spires.
It houses artworks from the Campi brothers, Bernardino Gatti, Giacomo Bertesi and Gabriele Capra.