Lac du Lachtelweiher
{{Infobox lake
| name = Lac du Lachtelweiher
| image = Lachtelweiher.jpg
| caption =
| image_bathymetry =
| caption_bathymetry =
|pushpin_map=France
| location = Haut-Rhin
| coords = {{coord|47|46|38|N|6|55|52|E|region:FR_source:frwiki_type:waterbody|display=inline,title}}
| type =
| inflow =
| outflow =
| catchment =
| basin_countries = France
| length =
| width =
| area = {{convert|0.015|km2|abbr=on}}
| depth =
| max-depth = {{convert|5|m|abbr=on}}
| volume =
| residence_time =
| shore =
| elevation = {{convert|740|m|abbr=on}}
| frozen =
| islands =
| cities =
| reference =
}}
Lac du Lachtelweiher is a lake in Haut-Rhin, France. At an elevation of 740 m, its surface area is 0.015 km². The French name is a tautology as the German Weiher already means pond/lake.
{{DEFAULTSORT:Lachtelweiher}}
{{HautRhin-geo-stub}}