Lake Menomin

Infobox lake
lake_name = Lake Menomin
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location = Dunn County, Wisconsin
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type = reservoir
inflow = Red Cedar River
outflow = Red Cedar River
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basin_countries = United States
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Lake Menomin is a reservoir on the Red Cedar River, in Dunn County, Wisconsin.

Along the lake's western and southern shores lies the city of Menomonie, the central business district of which is located at the far southern end of the lake, near the dam which forms it. Algae blooms regularly afflict the lake due to high phosphate levels from runoff. These blooms culminate in late summer when mats of foul smelling algae often gather in sheltered areas.