| Name | Rank | Born | Died | Notes [+ indicates died while crew of boat] |
| Albutat | Friedrich | OLt.ing.LI | 26.12.1917 | 25.04.1943 | U-86. U-203+ British escort carrier HMS Biter aircraft and by the British destroyer HMS Pathfinder. 38 survivors lost S.of Cape Farewell. 55.05N. 42.25W. |
| Arp | Julius | Lt.z.S | | | U-82. U-203. Pow.25.04.43 serial/entry Crew of XIII/1939 |
| Bald | Heinz | Maat | 12.04.1920 | 02.05.1945 | U-203 birthplace Danzig buried Lauenburg / Elbe. Block 3. Row 4. Grave 322. |
| Bartel | Helmut | OStrm | | | U-203. U-249 |
| Baust | Franz | OMasch | 15.02.1915 | 04.02.1945 | U-203. U-745+ lost Gulf of Finland awards DKiG. 03.11.44.(U-745). |
| Berkenhagen | Gerhard | BtsMt | | | U-203. Pow.25.04.43 serial/entry Oct.1940. awards U-boat Badge. E.K.2. E.K.1. |
| Bernhardt | Erich | | | | U-203 |
| Beyer | Gerhard | MaschOGfr | | | U-203. Pow.25.04.43 |
| Böhm | Gerhard | BtsMt | | | U-203. Pow.25.04.43 |
| Brandt | Uwe | Fähnr.z.S | | | U-203. WO. Pow.25.04.43 serial/entry Crew of I/1941 |
| Breyer | Bruno | | | | U-203 |
| Brockmann | Wilhelm | OMaschMt | | | U-203. Pow.25.04.43 |
| Büsing | Gerhard | MaschMt | 09.05.1923 | 25.04.1943 | U-203+ |
| Dobenecker | Günter | Olt.z.S.01.10.44 | 09.02.1922 | 04.08.1983 | 16th.M.S.flot.(01.41-04.41). U-203. Fähnr.(11.41-03.42). U-650. 2&1WO.11.42-03.44. U-11. Cdr.14.07.44-15.12.44. U-2524. Cdr.04.45-05.45 birthplace Berlin-Charlottenburg serial/entry Crew of 1940 |
| Drewitz | Hans-Joachim | KpLt.01.04.40 | 14.11.1907 | 11.08.1943 | """M-9"". ""M-10"". U-203. training.03.42-05.42. U-525+ Cdr.30.07.42-11.08.43." birthplace Thorn lost N.W.of Azores serial/entry Crew of 1932 awards DKiG. 18.06.42. |
| Drulla | Franz | MaschGfr | 18.10.1922 | 01.01.1993 | U-203. Pow.25.04.43 |
| Dübler | Rudolf | OLt.z.S.01.12.43 | 12.10.1921 | | U-203. training.05.41-09.41. U-83. training.09.41-11.41. U-464. WO.05.42-06.42. U-81. 2WO.07.42-04.43.1WO.04.43-08.43. U-1101. Cdr.10.11.43-05.05.45 birthplace Greiz, Thüringen serial/entry Crew of XII/1939 |
| Endrulath | Karlheinz Prof Dr | KpLt | 08.04.1919 | 05.05.2005 | U-201. U-203 birthplace Zeitz / Merseburg |
| Friedrichs | Josef | | | | U-203 |
| Fuchs | Walter | | 05.06.1916 | 19.05.1991 | U-203 |
| Gämlich | Willi | OMasch | 08.09.1916 | | U-48. U-203. U-472. pow.04.03.44 |
| Genter | Fritz | MaschOGfr | | | U-203. Pow.25.04.43 |
| Gernhardt | Theodor | BtsMt | | | U-203. All patrols except the one Mützelburg died when in hospital with high blood pressure. Pow.25.04.43 |
| Gilardone | Hans | KpLt 01.02.40 | 09.07.1912 | 08.12.1942 | """KOLN"".W.O.(03.38-03.41). U-203. (09.41-10.41). U-254+ Cdr.08.11.41-08.12.42." birthplace Marz/Eisenstadt München lost S.E.of Cape Farewell serial/entry Crew of 1932 |
| Gossow | Hekmut | MtrGfr | | | U-203. Pow.25.04.43 |
| Gräbnitz | Günter | MechMt.A | 07.06.1921 | 25.04.1943 | U-203+ |
| Greinachar | Alfred | MtrGfr | | | U-203. Pow.25.04.43 |
| Grunewald | Helmut | MechGfr | | | U-203. Pow.25.04.43 |
| Haberfelner | Friedrich | | | | U-203 |
| Harte | Werner | MaschGfr | | | U-203. Pow.25.04.43 |
| Hartmann | Hans | Lt.z.S | | 22.12.2005 | U-203. U-1149. U-1203. 1WO.(May.45) lost Morristown NJ. Hospital (Cancer). |
| Haupt | Hans-Jürgen | OLt.z.S.d.R.01.03.43 | 19.02.1911 | 22.03.1943 | 1st.S.St.A.Zugfuhrer.(11.40-01.41). U-203. WO.(02.41-06.42). U-665+ Cdr.(07.42-03.43) Missing birthplace Berlin lost Bay of Biscay serial/entry Crew of 1935 |
| Heep | Heinrich | OLt.ing | | | U-203 |
| Heimann | Ernst | | | | U-203 |
| Heller | Walter | | | | U-203 |
| Hesse | Gerhard | MaschOGfr | | | U-203. Pow.25.04.43 |
| Heyda | Klaus | OLt.z.S | 22.10.1915 | 11.11.1941 | "U-203. U-580+ collision with target ship ""Angelburg"". 32 survivors." lost Baltic sea near Memel. 55.45N. 20.40E. |
| Heyn | Alfons | OStrm | 30.10.1916 | 25.04.1943 | U-203+ |
| Hoffmann | Wilhelm | MaschOGfr | 24.08.1922 | 25.04.1943 | U-203+ lost S.of Cape Farewell |
| Hoske | Werner | MaschOGfr | 30.07.1922 | 25.04.1943 | U-203+ |
| Jonhs | Karl | MaschGfr | | | U-203. Pow.25.04.43 |
| Karsch | Herbert | FkMt | | | U-203. Pow.25.04.43 |
| Köhler | Rudolf | | | | U-203 |
| Kopp | August | | | | U-202. U-203 |
| Kottmann | Hermann | KpLt.01.04.43 | 04.12.1915 | 23.06.1955 | """ADMIRAL GRAF SPEE"" 3.Flaf.Off.(05.39-12.39). Interned.(12.39-07.40). Escaped back to Germany. ""SCHIFF-11"".(08.40-09.40). ""TIRPITZ"".(11.40-06.41). U-203. Cdr.(09.42-04.43) pow.25.04.43." birthplace Hannover serial/entry Crew of 1936 |
| Krummbach | Günter | MaschMt | | | U-203. Pow.25.04.43 |
| Kuntze | Herbert | MaschOGfr | | | U-203. Pow.25.04.43 |
| Lampe | Helmut | | | | U-203 |
| Lange | Helmut | | | | U-28. U-203 |
| Lange | Karl-Heinz | OFähnr.ing | 01.07.1917 | | U-48. U-203. U-474. U-733 birthplace Hamburg |