Duden Park is a public park located in the municipality of Forest in Brussels, Belgium. It covers 24 hectares and has a level difference of 45 metres, with its highest point being at an elevation of 90 metres. Duden Park is home to the historical football club Royale Union Saint-Gilloise with Joseph Marien Stadium being located to the west of the park near the lowest point, at 55 metres elevation. The park is adjacent to Forest Park to its north.