Weesp is a city and municipality in the province of North Holland, Netherlands. It had a population of 19,334 in 2019. It lies on the river Vecht and next to the Amsterdam–Rhine Canal in an area called the Vechtstreek. Weesp is part of the Amsterdam metropolitan area even if the city is surrounded by open grassland and lakes.
On 1 June 2019 the civil service offices of the municipality of Weesp merged with those of the municipality of Amsterdam in preparation of the merger of the two municipalities, which is to happen on 24 March 2022.