In the German Kriegsmarine of the Second World War, Generaladmiral was a rank senior to an Admiral, but junior to a Großadmiral. Generaladmiral was a four-star admiral rank, equivalent to a full admiral in the British and American navies. In the traditional German ranking system until World War II, an admiral was equivalent to a British or American vice admiral.
The sleeve insignia for a Generaladmiral was the same as that of a regular admiral, being a thick rank stripe below three regular stripes (Kolbenringe in German naval parlance). Generaladmirals wore a third pip on their shoulder boards to differentiate them from regular admirals. The German Army and Air Force equivalent of Generaladmiral was the rank colonel general (Generaloberst).
In 1943, a directive was issued that should the Oberbefehlshaber der Kriegsmarine ("commander of the navy") hold the rank of Generaladmiral, he would wear the sleeve insignia of a grand admiral, but the shoulder boards of a Generaladmiral.
A similar practice was used in the German Army, allowing colonel generals to wear four pips on the shoulder board when engaged in duties befitting a field marshal.
The last surviving Kriegsmarine Generaladmiral was Oskar Kummetz, who died at the age of 89 on 17 December 1980