| Name | Rank | Born | Died | Notes [+ indicates died while crew of boat] |
| Bauer | Jakob | Mtr.II | 11.11.1920 | 18.08.1944 | U-621+ lost near La Rochelle |
| Bauer | Ludwig | OBtsMt | 02.03.1917 | 18.08.1944 | U-621+ lost near La Rochelle |
| Bauß | Heinz | MaschOGfr | 05.02.1921 | 18.08.1944 | U-621+ lost near La Rochelle |
| Beelitz | Horst | StrmMt | 24.01.1926 | 18.08.1944 | U-621+ lost near La Rochelle |
| Benzino | Wolfgang | OLt.z.S | | | U-621. U-761. Pow.24.02.1944 |
| Brinkmann | Geert | Lt.z.S | 25.04.1923 | 18.08.1944 | U-621+ lost Near La Rochelle serial/entry Class of V/1941 |
| Brühn | Heinz | OMasch | 14.12.1915 | 18.08.1944 | U-621+ lost near La Rochelle |
| Bruns | Heinz | MaschOGfr | 29.05.1925 | 18.08.1944 | U-621+ lost near La Rochelle |
| Dobrowol | Werner | MaschOGfr | 10.03.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Dorn | Emil | MtrOGfr | 02.09.1924 | 18.08.1944 | U-621+ lost near La Rochelle |
| Dulka | Werner | MaschGfr | 16.12.1925 | 18.08.1944 | U-621+ lost near La Rochelle |
| Eilers | Otto | Welfare Officer | 27.01.1909 | 18.08.1944 | U-621+ passenger to Norway lost near La Rochelle |
| Fees | Karl | MArt | 14.08.1912 | 18.08.1944 | U-621+ passenger to Norway lost near La Rochelle |
| Geißler | Edwin | | | | U-621 |
| Gottschalk | Rudolf | | 19.07.1923 | | U-621 |
| Großstück | Heinz | MtrGfr | 20.12.1924 | 18.08.1944 | U-621+ lost near La Rochelle |
| Gütter | Kurt | StOStrm | 09.10.1913 | 18.08.1944 | U-621+ lost near La Rochelle |
| Gymnich | Gerhard | MtrOGfr | 28.10.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Hackert | Alfred | FkOGfr | 10.09.1925 | 18.08.1944 | U-621+ lost near La Rochelle |
| Häfner | Hans | MechOGfr | 16.10.1924 | 18.08.1944 | U-621+ lost near La Rochelle |
| Hammer | Ulrich | OLt.z.S | 26.03.1918 | | U-621. 1WO.(05.42-06.43). U-367. Cdr.(08.43-01.44). U-430. Cdr.(01.44-03.45). U-733. Cdr.(04.45-05.45) birthplace Werro Estonia serial/entry Crew of IX/1939 |
| Hartmann | Ewald | MaschOGfr | 17.01.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Heymann | Rudolf | OLt.ing | | | U-6. U-92. U-621 |
| Jahnke | Walter | MaschOGfr | 11.09.1924 | 18.08.1944 | U-621+ lost near La Rochelle |
| Jandt | Horst | MtrOGfr | 10.09.1920 | 18.08.1944 | U-621+ lost near La Rochelle |
| Jansen | Matthias | FkGfr | 25.12.1925 | 18.08.1944 | U-621+ lost near La Rochelle |
| Jennert | Friedrich | MaschMt | 22.02.1921 | 18.08.1944 | U-621+ lost near La Rochelle |
| Jürgensen | | Angestellter | | 18.08.1944 | U-621+ passenger to Norway lost near La Rochelle |
| Klages | Theodor | | | | U-621 |
| Kloß | Kurt | FkOGfr | 12.09.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Knahl | Wilhelm | MtrGfr | 23.05.1926 | 18.08.1944 | U-621+ lost near La Rochelle |
| Koch | Heinz | MechOGfr | 08.11.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Krist | Hans | Mtr | 21.08.1919 | 18.08.1944 | U-621+ lost near La Rochelle |
| Kruschka | Max | KpLt | 07.05.1919 | | U-554. 2WO.(03.41-06.41). 1WO.(06.41-11.41). U-217. 1WO.(01.42-1042). U-621. Cdr.(12.42-05.44) birthplace Schleswig serial/entry Crew of 1937b awards DKiG. 26.04.44.(U-621). |
| Kurzer | Heinz | OMaschMt | 02.04.1923 | 18.08.1944 | U-333. U-621+ lost near La Rochelle |
| Laffer | Rudolf | MtrOGfr | 01.02.1925 | 18.08.1944 | U-621+ lost near La Rochelle |
| Lange | Franz | OBtsMt | 18.06.1921 | 18.08.1944 | U-621+ lost near La Rochelle |
| Leuers | Willi | MaschMt | 28.01.1922 | 18.08.1944 | U-621+ lost near La Rochelle |
| Leyendecker | Werner | MaschGfr | 12.03.1925 | 18.08.1944 | U-621+ lost near La Rochelle |
| Mannstein | Erwin | MaschOGfr | 20.02.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Maul | Helmut | OBtsMt | 03.02.1922 | 18.08.1944 | U-621+ lost near La Rochelle |
| Mehlhorn | Kurt | OMechMt | 08.07.1920 | 18.08.1944 | U-621+ lost near La Rochelle |
| Müller | Andreas | MtrOGfr | 26.09.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Orzelski | Heinrich | MaschMt | 04.10.1921 | 18.08.1944 | U-621+ lost near La Rochelle |
| Passen | Josef | OFkMt | 06.12.1920 | 18.08.1944 | U-621+ lost near La Rochelle |
| Pohle | Volkmar | Lt.ing | 11.08.1922 | 18.08.1944 | U-621+ lost near La Rochelle |
| Reisner | Werner | MaschMt | 03.12.1924 | 18.08.1944 | U-621+ lost near La Rochelle |
| Rudolph | Heinz | MechGfr | 11.08.1923 | 18.08.1944 | U-621+ lost near La Rochelle |
| Ruthowsky | Joseph | BtsMt | 27.01.1922 | 18.08.1944 | U-621+ lost near La Rochelle |
| Saalfeld | Joseph | OFkMt | 06.03.1920 | 18.08.1944 | U-621+ lost near La Rochelle |