Lake Waubesa is one of the four major lakes in Dane County, Wisconsin that surround the city of Madison. The lake has a surface area of and a max depth of . The lake was historically known as Sahu Xetera (Tall Reed Lake) by the Ho-Chunk people.
This lake is fed via the Yahara River Watershed and 9 Springs Wastewater Effluent.
In 2013, the Wisconsin state record Yellow bass was caught in Lake Waubesa. It was long and weighed .