Oldest parish church in Delft, founded around 1200. The oldest parts date from the 14th century. The 75-metre-high tower was built between 1325-1350. The last additions on Oudekerkstraat date from 1510-1536. Stone-clad facades are done in Brabant Gothic, designed by Antonis Keldermans. Pulpit (1548) is decorated with unique carvings in Renaissance style. Tombs of naval heroes Piet Hein and Maarten Tromp. A unique collection of 27 stained glass windows by Joep Nicolas (20th century). Until the Reformation, the church was dedicated to Saint Hippolytus.
Due to church services, the Oude Kerk is not open to visitors of Open Monument Day Delft on Sundays.