The Church of St John the Evangelist (French: église Saint-Jean l'Evangéliste) in the city of Liège, Belgium, was founded as a collegiate church by Notker of Liège around 980, and consecrated in 987. It was the place of Notker's tomb. The church was suppressed in 1797 during the French Revolution, the building being confiscated and sold in 1798.
Originally an octagonal building in Mosan Romanesque style, incorporating elements of the Church of the Holy Sepulchre in Jerusalem, the church was completely rebuilt in a late Baroque style in 1754–1784. It has been in use as a parish church since 1809, and has been listed as a monument since 1952.
The church maintained a library from 1388.
The Renaissance composer Johannes Brassart was closely associated with the church.
Coordinates: 50°38′35″N 5°34′02″E / 50.6430°N 5.5673°E