Until 1 January 2007, Bjergsted was a municipality (Danish, kommune) in West Zealand County on the west coast of the island of Zealand (Sjælland) in Denmark. The municipality included the islands of Sejerø and Nekselø, and covered an area of 138.62 km2. It had a total population of 8,047 (2005). Its last mayor was Gert Larsen, a member of the Venstre (Liberal Party) political party. The main town and the site of its municipal council was the town of Svebølle.