Møn is an island in south-eastern Denmark. Until 1 January 2007, it was a municipality in its own right but it is now part of the municipality of Vordingborg, after merging with the former municipalities of Langebæk, Præstø, and Vordingborg. This has created a municipality with an area of 615 km2 (237 sq mi) and a total population of 46,307 (2005). It belongs to the Region Sjælland. Møn is one of Denmark's most popular destinations for tourists with its white chalk cliffs, countryside, sandy beaches and the market town of Stege. In June 2017, UNESCO designated Møn as Denmark's first biosphere reserve, consisting of "a series of islands and islets in the southern Baltic Sea, over approximately 45,118 hectares. Its landscapes include woodlands, grasslands, meadows, wetlands, coastal areas, ponds and steep hills."

Vordingborg Municipality is a kommune in the Sjælland Region, which is on the southeast coast of the island of Zealand in south Denmark. It was established in 2007. The municipality covers an area of 621 km2. It has a total population of 45,441 (2023). Its fourth and current mayor is Mikael Smed of the Social Democrats, who was elected in 2017, replacing Michael Seiding Larsen of the agrarian-liberal Venstre party.