Boskoop is a town located in the province of South Holland in the Netherlands. It formerly functioned as an independent municipality before merging into Alphen aan den Rijn in 2014.
The town covers a total area of 7.29 km2 (2.81 sq mi), with approximately 1.39 km2 (0.54 sq mi) consisting of water. As of 2012, the population was recorded at 15,050 residents.
Boskoop is notable for being the world's largest joined floriculture area.