German Submarine U-537

German submarine U-537 was a Type IXC/40 U-boat of the German Kriegsmarine built for service during World War II. Her keel was laid down on 10 April 1942 by Deutsche Werft in Hamburg. She was commissioned on 27 January 1943 with Kapitänleutnant Peter Schrewe in command. Schrewe commanded the boat for nearly two years, until her loss.

U-537 conducted three patrols, and holds the distinction of making the only armed German landing in North America during World War II — installing the automatic Weather Station Kurt in Martin Bay, Labrador on 22 October 1943. She was then sent to the Far East. On 10 November 1944 in the Java Sea east of Surabaya, U-537 was sunk with all hands — 58 officers and men — by torpedoes from USS Flounder (SS-251).