Until January 1, 2007, Dianalund municipality was a municipality (Danish, kommune) in West Zealand County on the island of Zealand (Sjælland) in east Denmark. The municipality covered an area of 67 km², and had a total population of 7,406 (2005). Its last mayor was Per Hovmand, a member of the Conservative People's Party (Det Konservative Folkeparti) political party.