Propsteikirche is the common name of a church in Dortmund, North Rhine-Westphalia, Germany, the only Catholic church in the city centre. The full name is Propsteikirche St. Johannes Baptist Dortmund. It was built from 1331 as the abbey church of a Dominican monastery. Consecrated in 1458, it features a late-Gothic high altar by Derick Baegert which shows the oldest depiction of Dortmund.

The church became the first Catholic church in Dortmund after the Reformation, a Propsteikirche from 1859. Destroyed in World War II, it was rebuilt until 1966. Its organ, built in 1988, makes it a concert venue.

A Dominican abbey was founded in Dortmund in 1330, and a first abbey church was built from 1331 to 1353, consecrated in 1354, dedicated to John the Baptist. It was soon expanded to a Gothic hall church, begun in 1404 and consecrated in 1458. The church of a mendicant order, it was mainly a place for prayer and built simple and without a steeple. The abbey was dissolved during the secularization in 1816. The church became the first Catholic parish church in Dortmund after the Reformation in 1819. It was promoted to a Provost church [de] in 1859. The former abbey buildings were used to house the priest and as school buildings.

The church was destroyed in World War II in 1943. Its most important art treasures had been removed, surviving the war. The church was rebuilt from 1947 to 1967. It is a listed monument.

The church features a late-Gothic high altar by Derick Baegert, focused on the themes of the Passion and Crucifixion. It shows in the background of the left panel the oldest depiction of Dortmund.