The William W. Powers State Recreation Area is a state park and recreation area in Chicago, Illinois. It covers 580 acres of area, 419 of which are composed of water.

Established in 1947, the William W. Powers State Recreation Area is named in 1965 after William W. Powers who was a Chicago alderman. It was formerly known as Wolf Lake Conservation Area, after the historic Wolf Lake where Mary Todd Lincoln almost drowned. The site had a close relation to Powers for being the location where he used it for picnics that fed the needy during the Great Depression.

The William W. Powers State Recreation Area is also home to several kinds of wildlife. It is also rich in flora, being filled with willow and cottonwood trees.