Museum de Oude Wolden (Dutch pronunciation: [myˈzeːjʏm də ˌʔʌudə ˈʋɔldə(n)]; English: Museum The Old Wolds), abbreviated as MOW, is a regional museum in the village of Bellingwolde in the Netherlands. The museum focuses on art and history of the regions of Oldambt and Westerwolde in the east of the province of Groningen.
The museum opened on 10 August 1973. In the first decades, it primarily exhibited historical objects documenting everyday life. In the late 1990s, the museum started to exhibit artworks of artist collective De Ploeg and magic realist painter Lodewijk Bruckman. Since 2012, it has a permanent display of paintings by Bruckman and temporary exhibitions.