German submarine U-2519 was a Type XXI U-boat (one of the "Elektroboote") of Nazi Germany's Kriegsmarine, built for service in World War II.

The submarine was laid down on 24 August 1944 at the Blohm & Voss yard at Hamburg, launched on 13 October 1944, and commissioned on 15 November 1944 under the command of Korvettenkapitän Peter-Erich Cremer, who commanded her until February 1945.

[2] The submarine was powered by two MAN SE supercharged six-cylinder M6V40/46KBB diesel engines each providing 4,000 metric horsepower (2,900 kilowatts; 3,900 shaft horsepower), two Siemens-Schuckert GU365/30 double-acting electric motors each providing 5,000 PS (3,700 kW; 4,900 shp), and two Siemens-Schuckert silent running GV232/28 electric motors each providing 226 PS (166 kW; 223 shp).

When running on silent motors the boat could operate at a speed of 6.1 knots (11.3 km/h; 7.0 mph).

When submerged, the boat could operate at 5 knots (9.3 km/h; 5.8 mph) for 340 nautical miles (630 km; 390 mi); when surfaced, she could travel 15,500 nautical miles (28,700 km; 17,800 mi) at 10 knots (19 km/h; 12 mph).