The Church of St. Peter and St. Paul is a Roman Catholic church located in the Antakalnis neighbourhood of Vilnius, Lithuania. It is the centerpiece of a former monastery complex of the Canons Regular of the Lateran. Its interior has masterful compositions of some 2,000 stucco figures by Giovanni Pietro Perti and ornamentation by Giovanni Maria Galli and is unique in Europe. The church is considered a masterpiece of the Polish–Lithuanian Commonwealth Baroque. It was funded by Michał Kazimierz Pac, commemorating a victory over the Muscovites and their expulsion from Vilnius after six years of occupation.