Alblasserdam (Dutch: [ɑlˌblɑsərˈdɑm] ⓘ) is a town and municipality in the western Netherlands, in the province of South Holland.

A portion of the small village of Kinderdijk, which boasts the largest and most famous concentration of windmills in the Netherlands, is part of Alblasserdam.

The town of Alblasserdam was first mentioned in the chronicles of Melis Stoke in 1299, but the municipality wasn't formed until 1447.

Because of its location on the Noord river, one of the busiest waterways in Western Europe, water has played a major role in Alblasserdam's history.

During World War I, mayor Simon Berman[5] and the local government of Alblasserdam kept busy with 60 Belgian refugees within the municipal boundaries.