Leavenworth is a neighborhood in the midtown region of Omaha, Nebraska. It is bounded by Harney Street to the north, 20th Street to the east, Leavenworth Street and Mason Street to the south, and Turner Boulevard to the west. Leavenworth is straddled by the Gerald R. Ford Expressway, roughly dividing the neighborhood into a business district in the east and a residential area in the west. The neighborhood is home to the Omaha Children's Museum, a popular attraction in the midtown area.