Maasdijk may refer to:
People Jacob "Koos" Arnold Maasdijk (born 1968), former rower from the Netherlands
Places Maasdijk, Hoeksche Waard, a hamlet in the Dutch province of South Holland, part of the municipality of Hoeksche Waard Maasdijk, Westland, a village in the Dutch province of South Holland, part of the municipality of Westland