Waukesha Metro Transit is a public transit agency operating in the city of Waukesha and throughout Waukesha County. Founded in 1981, the system directly operates ten bus routes, contracts three commuter routes to Wisconsin Coach Lines, and partially funds two routes of Milwaukee County Transit System which extend into Waukesha County.

Waukesha is the county seat of Waukesha County, Wisconsin, United States, along the Fox River. Its population was 71,158 at the 2020 census, making it the seventh-most populous city in Wisconsin. It is part of the Milwaukee metropolitan area. The city is adjacent to the Village of Waukesha.