Koolkerke is suburb of Bruges in the province of West Flanders in Belgium. Its name derives from Kool, a short version of the name Nicolas, hence from the from the church of St Nicholas. The church in Koolkerke was named by the settlement's founder, Nicolaas Gaillaerd. Other local attractions include the old windmill Ter Panne, and the Groene Poort castle, Dudzeelse steenweg 460 (now called Château Rougesse).