The Hop, also known as the Milwaukee Streetcar, is a modern streetcar system in Milwaukee, Wisconsin. The system’s 2.1-mile (3.4 km) original “M” line connects the Milwaukee Intermodal Station and Downtown to the Lower East Side and Historic Third Ward neighborhoods. On April 11, 2024, a 0.4-mile (640 m) Lakefront, or “L” line, to the nearly complete high-rise development The Couture, began offering full daily service. Additional extensions for new lines are currently in the planning stage. The system is owned by the city and operated by Transdev.

Milwaukee is the most populous city in the U.S. state of Wisconsin and the county seat of Milwaukee County. With a population of 577,222 at the 2020 census, Milwaukee is the 31st-most populous city in the United States, and the fifth-most populous city in the Midwest. It is the central city of the Milwaukee metropolitan area, the 40th-most populous metro area in the U.S. Milwaukee is categorized as a "Gamma minus" city by the Globalization and World Cities Research Network, with a regional GDP of over $102 billion in 2020.