Strijensas is a village in the Dutch province of South Holland. It is located about 12 km southwest of the city of Dordrecht, in the municipality of Strijen.
Strijensas was a separate municipality between 1817 and 1855, when it became part of Strijen.
Coordinates: 51°43′N 4°35′E / 51.717°N 4.583°E / 51.717; 4.583