Lac de Lessy

{{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.