Haut-Vully () is a former municipality in the district of See/Lac in the canton of Fribourg in Switzerland. Until 1977, it was officially known as Vully-Le-Haut. Its German name of Oberwistenlach is now little used. On 1 January 2016 the former municipalities of Bas-Vully and Haut-Vully merged to form Mont-Vully. History Haut-Vully is first mentioned around 968-85 as Vuisliacense. In 1453 it was mentioned as Vuilliez. Geography Haut-Vully had an area, , of . Of this area, or 70.4% is used for agricultural purposes, while or 13.2% is forested. Of the rest of the land, or 13.1% is settled (buildings or roads), or 2.5% is either rivers or lakes and or 0.7% is unproductive land. Of the built up area, housing and buildings made up 8.8% and transportation infrastructure made up 3.7%. Out of the forested land, 11.1% of the total land area is heavily forested and 2.1% is covered with orchards or small clusters of trees. Of the agricultural land, 54.7% is used for growing crops and 6.9% is pastures, while 8.8% is used for orchards or vine crops. All the water in the municipality is flowing water. The former municipality is located in the See/Lac district, on the south-west flank of Mont Vully. The northern edge of the municipal area is the Broye river at Lake Neuchatel. It consists of the villages of Môtier, Lugnorre, Joressant and Mur along with the hamlet of Guévaux. Coat of arms The blazon of the municipal coat of arms is Gules, in chief between two Keys Or in Saltire an Escutcheon Argent bordered Or five Fusils of the last Demographics Haut-Vully had a population () of 1,397. , 12.1% of the population are resident foreign nationals. Over the last 10 years (2000–2010) the population has changed at a rate of 25.1%. Migration accounted for 23.3%, while births and deaths accounted for 3.4%. Most of the population () speaks French (615 or 58.3%) as their first language, German is the second most common (385 or 36.5%) and Portuguese is the third (18 or 1.7%). There are 9 people who speak Italian. , the population was 50.7% male and 49.3% female. The population was made up of 582 Swiss men (44.2% of the population) and 86 (6.5%) non-Swiss men. There were 579 Swiss women (43.9%) and 71 (5.4%) non-Swiss women. Of the population in the municipality, 312 or about 29.6% were born in Haut-Vully