History
United States
Name	Sentinel
Builder	Defoe Shipbuilding Co., Bay City, Michigan
Fate	Contract cancelled, 12 August 1945
General characteristics (as designed)
Displacement	625 long tons (635 t)
Length	184 ft 6 in (56.24 m)
Beam	33 ft (10 m)
Draft	10 ft (3.0 m)
Speed	15 knots (28 km/h; 17 mph)
Complement	104 officers and men
Armament	1 × 3"/50 caliber gun 4 × Bofors 40 mm gun 6 × Oerlikon 20 mm cannon 1 × Hedgehog anti-submarine mortar 4 × Depth charge projectors 2 × Depth charge racks 2 × Minesweeping paravanes

USS Sentinel (AM-412) was a steel-hulled fleet (oceangoing) minesweeper of the Admirable class planned for the United States Navy. She was a part of a group of minesweepers scheduled to be built as replacements and for Lend-Lease commitments. On 12 August 1945, three days before hostilities ceased in the Pacific, the U.S. Navy cancelled its contract with the Defoe Shipbuilding Co., Bay City, Michigan, for the construction of Sentinel.