Lake Wissota is a reservoir in Chippewa County, Wisconsin, USA, just east of the city of Chippewa Falls. It covers an area of 6,024 acres (24.38 km2) and has a maximum depth of 72 feet (22 m). The lake was formed by the construction of a hydroelectric dam on the Chippewa River, completed in 1917. The dam was built by the Wisconsin-Minnesota Light and Power Company. An engineer on the project, Louis G. Arnold, named the lake by combining the beginning of "Wisconsin" and the ending of "Minnesota".
In the 1997 film Titanic, Leonardo DiCaprio's character Jack Dawson mentions that he went ice fishing on the frozen waters of Lake Wissota as a boy. This would have been impossible, as the Titanic sank in 1912, three years before construction on the dam that formed Lake Wissota began.