Bergkirche Rodaun, Baroque parish church in Rodaun, Vienna, Austria.

Bergkirche Rodaun is a baroque Roman Catholic church on a rise 267 m above the Liesingbach valley in Rodaun, in Vienna's 23rd district, Liesing. Johann Enzenhofer designed the centralised domed building, erected 1739–1745 next to Schloss Rodaun; its 35 m tower was altered in 1905 to a design by Richard Merz, who also added the entrance porch.

The church was built between 1739 and 1745 under the patronage of Eleonore von Sauberskirchen, fulfilling her mother's final wish for the Rodaun estate. Its construction reflects the religious expansion taking place in the Vienna region during that baroque period.

The interior preserves original baroque decoration with a high altar painting of Jesus' baptism created by Michelangelo Unterberger. This artistic arrangement gives the space its religious character and remains central to how the church feels when you enter.

The church stands at 267 m on a rise above the Liesingbach valley, next to Schloss Rodaun. Since 1964 it has no longer served as Rodaun's parish church, so it is not always open; the parish office can confirm visiting times. The climb on foot is short but uphill.

The church survived Vienna's World War II air raids without damage. Its 1905/06 organ by Johann M. Kauffmann has twelve stops on two manuals and pedal, with mechanical key action and pneumatic stop action.