Mill Hill Historic Park in Norwalk, Connecticut, is a living history museum composed of three buildings: the circa 1740 Governor Thomas Fitch IV "law office", the c. 1826 Downtown District Schoolhouse, and the 1835 Norwalk Town Hall; as well as a historic cemetery also called the Town House Hill Cemetery.

The Mill Hill Park is now maintained by the Norwalk Historical Society and the Norwalk-Village Green Chapter of the Daughters of the American Revolution.

Civic leaders at first complied with the request by holding meetings in various private homes and then eventually in the Up Town District School (near St. Paul's on the Green, but since relocated).

In the aftermath of the burning Colonel Thomas Fitch V and other community members were appointed to a committee to plan the reconstruction of the Norwalk Town House, but the task was not completed until 1794.

The present Town House at Mill Hill was built in 1835 by Captain Lewis Raymond, who had brought brick to Norwalk as ship ballast.

Today the Town House continues to be used for displays of historic memorabilia, meetings, social occasions, and educational programs including visits by schoolchildren.