{{Short description|Lake in France}} {{Unreferenced|date=May 2026}} {{Infobox lake | name = Lac de Lessy | image = Pic_de_Jallouvre_-_Lac_de_Lessy.jpg | caption = | image_bathymetry = | caption_bathymetry = | location = Haute-Savoie | coords = {{coord|45|59|16|N|6|26|17|E|type:waterbody_region:FR-74|display=inline,title}} | type = | inflow = |pushpin_map=France Savoie | outflow = | catchment = | basin_countries = France | length = | width = | area = {{convert|7.1|ha|abbr=on}} | depth = | max-depth = {{convert|1.7|m|abbr=on}} | volume = | residence_time = 600 days | shore = | elevation = {{convert|1730|m|abbr=on}} | frozen = | islands = | cities = }} '''Lac de Lessy''' is a lake at Le Petit-Bornand-les-Glières in the Haute-Savoie, France.

{{DEFAULTSORT:Lessy}} Category:Lakes of Haute-Savoie

{{HauteSavoie-geo-stub}}