Knights Cross with Oak leaves, Crossed swords and Diamonds
(Eichenlaub mit Schwertern und Brillantenzum Ritterkreuz des Eisernen Kreuz)
Introduced at the same time as the Oak Leaves and Crossed Swords and again presented for yet further acts of bravery. Only 27 received this award, 2 of which went to the Kriegsmarine and both to U-boat commanders.
| Nr. | Rank | Name | Crew | Age | Date | Recipient | U-boat | |
| 1. | Krvkpt. | Lüth, Wolfgang | +* | 1933 | 29 | 9 Aug, 1943 | 7th | U-181 |
| 2. | Krvkpt. | Brandi, Albrecht | 1935 | 30 | 23 Nov, 1944 | 22nd | U-967 |
| + | died in WW II | * service begins in the Navy |
| +* | died in WW II by accident | |
