The Frans Hals Museum is a museum in the North Holland city of Haarlem, the Netherlands, founded in 1862, known as the Art Museum of Haarlem. Its collection is based on the city's own rich collection, built up from the 16th century onwards. The museum owns hundreds of paintings, including more than a dozen by Frans Hals, to whom the museum owes its name. The Frans Hals Museum has two historic locations in Haarlem city centre: the main location on Groot Heiligland and Location Hal on Grote Markt, composed of the adjacent 17th-century Vleeshal and 19th-century Verweyhal. On Groot Heiligland is the 17th-century Oudemannenhuis with regent's rooms. It houses the famous paintings by Frans Hals and other ancient, modern and contemporary art, as well as the museum café. Location Hal regularly hosts exhibitions of modern and contemporary art.

Haarlem is a city and municipality in the Netherlands. It is the capital of the province of North Holland. Haarlem is situated at the northern edge of the Randstad, one of the more populated metropolitan areas in Europe; it is also part of the Amsterdam metropolitan area. Haarlem had a population of 162,543 in 2021.