Korendijk (population: 10,812) is a municipality in the western Netherlands, in the province of South Holland. The municipality covers an area of 100.85 km² (of which 20.98 km² water).
The municipality of Korendijk consists the following towns, villages and townships: Goudswaard, Nieuw-Beijerland, Nieuwendijk, Piershil, Tiengemeten, Zuid-Beijerland, Zuidzijde.
