German submarine U-654

German submarine U-654 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 1 June 1940 by Howaldtswerke, Hamburg as yard number 803, launched on 3 May 1941 and commissioned on 5 July 1941 under Korvettenkapitän Hans-Joachim Hesse.

Service History
The boat's career began with training at 5th U-boat Flotilla on 5 July 1941, followed by active service on 1 November 1941 as part of the 1st Flotilla for the remainder of her service.

In four patrols she sank three merchant ships, for a total of and one warship.

Wolfpacks
U-654 took part in one wolfpack, namely
 * Ziethen (6 – 22 January 1942)

Fate
U-654 was sunk on 22 August 1942 in the Caribbean in position 12°N, -79.93333°W, by depth charges from a USAAF Douglas Digby aircraft. All hands were lost.