The Dutch Church, Austin Friars, is a reformed church in the Broad Street Ward, in the City of London. Located on the site of the 13th-century Augustinian friary, the original building granted to Protestant refugees for their church services in 1550 was destroyed during the London Blitz.
The present church was built between 1950 and 1954 and is a familiar landmark in the Broad Street Ward. With the founding of the church dating to 1550, it is the oldest Dutch-language Protestant church in the world, and as such is known in The Netherlands as the mother church of all Dutch reformed churches.