Manchester State Park, State park in Kitsap County, United States

Manchester State Park covers 111 acres on the east side of the Kitsap Peninsula, with 3,400 feet of shoreline on Puget Sound. It holds a former torpedo warehouse, a mining casemate and Battery Mitchell, a gun battery built for two 3-inch rapid-fire guns that were never installed. Trails run 1.9 miles through the grounds.

The property began in the early 1900s as a military reservation protecting the Puget Sound Naval Shipyard through harbor defense installations. It later transformed from a defensive position into public recreational land.

The park's military past survives in names like Battery Mitchell, honoring Lieutenant Robert B. Mitchell, and in the former torpedo warehouse, which visitors can reserve for weddings and reunions. Three exhibit signs installed in 2015 explain the coastal defense history of Middle Point Military Reservation.

The park offers campsites in various configurations and complete restroom facilities, accommodating both multi-day stays and brief visits. It remains open throughout the year and is easily explored on foot, with good access to waterfront activities and nature.

Battery Mitchell was built for two 3-inch rapid-fire guns to guard the Rich Passage minefield, but the guns were never installed because Fort Ward already covered that role. Visitors can still walk into the concrete rooms meant for ammunition and for soldiers sheltering from enemy fire. The battery is named after Lieutenant Robert B. Mitchell.