Hans-Georg von Friedeburg (15 July 1895 – 23 May 1945) was a German admiral, the deputy commander of the U-boat Forces of Nazi Germany and the second-to-last Commander-in-Chief of the Kriegsmarine.

After the outbreak of World War I, von Friedeburg, promoted to the rank of Fähnrich zur See (Officer Aspirant) served on the dreadnought Kronprinz and took part in the 1916 Battle of Jutland against the British Royal Navy's Grand Fleet.

Arriving at Field Marshal Bernard Montgomery's headquarters in Lüneburg, Germany he was informed that an unconditional surrender to all Allied forces was necessary and not negotiable.

Upon receiving permission from Dönitz, he signed an instrument of surrender of all German armed forces in the Netherlands, northwest Germany and Denmark on 4 May 1945.

On 23 May 1945, the same day that members of the Flensburg Government were arrested, von Friedeburg became a prisoner of war of the British Army in Plön, and committed suicide by swallowing poison.