Lac de Montsalvens

{{Infobox body of water

| name = Lac de Montsalvens

| image = Lac Montsalvens.jpg

| caption =

| image_bathymetry =

| caption_bathymetry =

| location = Canton of Fribourg

| coords = {{coord|46|36|45|N|7|8|22|E|type:waterbody_region:CH-FR|display=inline,title}}

| type = reservoir

| inflow = La Jogne/Jaunbach, Le Javro, R. de Motélon

| outflow = La Jogne/Jaunbach

| catchment = {{convert|173|km2|abbr=on}}

| basin_countries = Switzerland

| length =

| width =

| area = {{convert|0.74|km2|abbr=on}}

| depth =

| max-depth = {{convert|50|m|abbr=on}}

| volume = {{convert|12.6|e6m3|acre.ft|abbr=out}}

| residence_time =

| shore =

| elevation = {{convert|801|m|abbr=on}}

| islands =

| cities = Charmey

| pushpin_map=Canton of Fribourg#Switzerland#Alps

| pushpin_label_position= bottom

| embedded = {{Infobox mapframe |wikidata=yes |zoom=14 |coord={{WikidataCoord|display=i}}}}

}}

Lac de Montsalvens is a reservoir in the Canton of Fribourg, Switzerland. The reservoir has a capacity of 12.6 million m³ and a surface area of {{convert|0.74|km2|abbr=on}}. It was built on the Jogne river, before the gorges, and below the road to Jaun Pass, between the villages of Broc and Charmey.{{cite web | url=https://s.geo.admin.ch/651944648749 | title=Lac de Montsalvens on the Swiss National Map | work=Swisstopo | accessdate=7 May 2022}}

The Grand Council of the canton of Fribourg decided construction of the dam on 17/18 May 1918. Designed by Alfred Stucky,{{Cite web|url=http://www.asst.ch/PIONNIERS/02.Stucky.FR.html|title=La Vie d'Alfred Stucky|website=www.asst.ch|access-date=2018-12-21}} the construction was completed by 1920 and in 1921 the reservoir filled for the first time.

Thanks to a forced conduct, electricity is produced at the Electrobroc power plant, located at Broc near the Cailler factory.