Saints Peter and Paul church in Pułtusk, Roman Catholic parish church in Pułtusk, Poland

Saints Peter and Paul Church is a three-nave brick church in Pułtusk, built from 1646 on the site of an earlier church destroyed by fire. Its towers were added in the early 18th century and it was consecrated in 1718. The main altar holds Wojciech Gerson's painting of the Immaculate Conception, flanked by metal figures of the two apostles.

The first church on the site was completed in 1570 and enlarged in 1583. After a fire destroyed it, work on the present three-nave church began in 1646; the towers rose in the early 18th century and the church was consecrated in 1718. In the town fire of 1875 the church burned with its furnishings and the vault collapsed; rebuilding lasted from 1875 to 1880, when the roof was covered with sheet metal and new bells, altars and pews were installed.

The church is a former Jesuit and Benedictine temple, and its dedication to Saints Peter and Paul is echoed inside by metal figures of the two apostles flanking the main altar. In the Chapel of the Sacred Heart hangs a painting by M. Łubieńska, while the left chapel holds an image of Saint Stanislaus Kostka.

The church stands in the town centre of Pułtusk, near the market square, and is entered through the main west door beneath the two early 18th-century towers. The three-nave interior lets visitors walk along the side aisles to the Chapel of the Sacred Heart and the left chapel; the main altar with Gerson's painting is at the far end.

The painting of the Immaculate Conception was created specifically for the main altar by renowned Polish painter Wojciech Gerson. This artwork stands as one of the most significant religious paintings housed within the building.