Lambertschaag is a village in the Dutch province of North Holland.

It is a part of the municipality of Medemblik, and lies about 12 km north of Hoorn.

The village of Lambertschaag is built along one road, going from Abbekerk on the south to the Wieringermeer polder on the north.

[3] Lambertschaag developed in the late-11th century as a peat excavation village of Abbekerk.

[4] The church is nowadays used for cultural activities, expositions and concerts.