Heinrich Wilhelm Herbert Wohlfarth[1] (5 June 1915 – 13 August 1982) was a German naval officer and U-boat commander during World War II.

In May 1937, he joined the U-boat force, and like many of the later successful commanders received a solid pre-war training under Karl Dönitz.

[2] On 15 June 1940 Wohlfarth commissioned U-137, also a Type IID U-boat, referred to as Einbaum (dugout canoe).

Especially notable was his torpedo hit on the 10,552-ton armed merchant cruiser HMS Cheshire, damaging the ship so badly that she had to spend six months in the shipyard for repairs.

On 26 May, during the return voyage, and ten days before his 26th birthday, Wohlfahrt responded to a call for all U-boats in the Bay of Biscay to support the Bismarck's increasingly deteriorating position.

On 19 June 1941 Wohlfarth started his second patrol on U-556, but just eight days later his boat was sunk in the North Atlantic southwest of Iceland by the British corvettes HMS Nasturtium, Celandine and Gladiolus.