Estavayer (French pronunciation: [ɛstavaje]) is a municipality of the canton of Fribourg, situated on the south shore of Lake Neuchâtel.

It was created on 1 January 2017 when the former municipalities of Bussy, Estavayer-le-Lac, Morens, Murist, Rueyres-les-Prés, Vernay and Vuissens merged to form Estavayer.

[6] Vernay was created on 1 January 2006 from the merger of the municipalities of Autavaux, Forel and Montbrelloz.

[9] The historical population is given in the following chart:[10] The De Rivaz Chapel, the Sacré-Coeur Chapel, the Chenaux Castle, the Collegiate church of Saint-Laurent, the Convent of the Dominican nuns, the town fortifications, the House de la Dîme and the House des Sires d’Estavayer in Estavayer-le-Lac, the Church of Saint-Maurice in Bussy, the Saint-Pierre Church and the La Molière tower in Murist listed as Swiss heritage site of national significance.

The entire town of Estavayer-le-Lac and the villages of Bussy and Vuissens are part of the Inventory of Swiss Heritage Sites.