Samsø Municipality is a municipality in Region of Central Denmark. Samsø municipality covers an area of 115 km2 in the Kattegat sea, between the Danish mainland of Jutland and Zealand and comprises the island of Samsø as well as a number of small surrounding islands. The mayor has since 2014 been Marcel Meijer, a member of the Social Democrats political party. The seat of the municipal council is the town of Tranebjerg.

Samsø is a Danish island in the Kattegat 15 kilometers (9.3 mi) off the Jutland Peninsula. Samsø is located in Samsø municipality. The community has 3,724 inhabitants (2017) called Samsings and is 114 km² in area. Due to its central location, the island was used during the Viking Age as a meeting place. The etymology of the island's name is unknown.