M – Museum Leuven or simply M is an art museum in the inner city of Leuven, Belgium, which was officially opened in 2009. The museum has a collection of some 46,000 works, which range from late-Gothic paintings and sculptures to 16th century local artists such as Jan Rombouts the Elder and Josse van der Baren to 19th-century paintings and sculptures by various Flemish masters including Constantin Meunier, Jef Lambeaux and George Minne.