| Name | Rank | Born | Died | Notes [+ indicates died while crew of boat] |
| Albiez | Franz | MechGfr | 31.01.1923 | 15.10.1942 | U-661+ British destroyer HMS Viscount. All crew lost lost Central N.Atlantic. 53.42N. 35.56W. |
| Behnke | Karl | BtsMt | 25.04.1915 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Beyer | Hans-Günter | FkMt | 26.09.1919 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Böse | Harry | MaschGfr | 22.09.1921 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Böttger | Martin | MaschMt | 04.07.1920 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Brinkmeier | Hermann | OBtsMt | 04.05.1920 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Brücklmeier | Sepp | FkGfr | 16.02.1924 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Burkart | Willi | FkMt | 10.07.1919 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Elfers | Hermann | MechGfr | 26.09.1921 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Ernst | Johannes | OMasch | 16.04.1914 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Felsen | Wolfgang | Lt.z.S | 12.07.1921 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Franzke | Franz | MaschMt | | | U-48. MaschOGfr. U-661 awards DKiG. 18.06.43.(U-661). |
| Glodowski | Franz | OBtsMt | 16.08.1916 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Grätz | Gerhard | MaschGfr | 05.09.1921 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Hirsch | Ulrich | MaschGfr | 01.07.1922 | 15.10.1942 | U-661+ birthplace Zoebingen lost Central N.Atlantic |
| Hofmann | Arthur | MaschGfr | 30.10.1921 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Ibach | Paul-Wilhelm | MaschGfr | 28.02.1923 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Jaschik | Franz | MtrGfr | 09.01.1923 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Köhler | Herbert-Otto | Mtr | 21.02.1923 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Koller | Wilhelm(Willi) | MaschOGfr | 29.07.1921 | 15.10.1942 | U-661+ lost N.Atlantic
ALBUM |
| Krollmann | Wilhelm | MtrGfr | 14.03.1923 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Kropius | Heinz-Karl | MtrGfr | 26.09.1922 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Krügel | Ludwig | MaschMt | 14.05.1919 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Kurzawa | Franz | MtrGfr | 22.10.1918 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Landrock | Siegfried | Strm.d.R | 29.01.1915 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Lawrenz | Hermann | OMasch | 25.01.1915 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Leven | Nikalaus | MaschGfr | 11.09.1922 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Lilienfeld von | Erich | OLt.z.S.01.10.39 | 22.11.1915 | 15.10.1942 | 1st.M.S.Flot.W.O.(01.40-08.40). 14th.M.S.Flot. Cdr.(08.40-01.41). U-553. 1WO.(08.41-11.41). U-661+ Cdr.(02.42-10.42) birthplace Rittergur Rocht Wierland Estonia lost N.Atlantic serial/entry Crew of 1935 |
| Maaß | Friedrich | FkGfr | 09.04.1922 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Marrenbach | Wilhelm | MtrGfr | 28.01.1922 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Moos | Herbert | MaschGfr | 13.09.1922 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Nonn | Josef | MtrGfr | 22.01.1923 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Oettel | Rolf | OMaschMt | 17.09.1919 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Päfgen | Hans | MtrGfr | 24.12.1923 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Pum | Stefan | MaschGfr | 30.10.1921 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Rexhäuser | Heinrich | MaschGfr | 25.06.1922 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Richter | Franz | Lt.z.S | 10.03.1920 | 15.10.1942 | U-661+ lost Central N.Atlantic serial/entry Crew of 1938 |
| Schmidt | Konrad | MtrGfr | 08.03.1922 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Scholten | Heinz | MaschGfr | 26.04.1924 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Seifert | Heinz | MaschMt | 09.10.1918 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Straußberger | Wilhelm | MtrOGfr | 26.03.1920 | 15.10.1942 | U-661+ lost Central N.Atlantic.
ALBUM |
| Vondenhoff | Peter | MaschMt | 22.12.1920 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Wedekind | Wilhelm | KpLt.ing | 03.08.1908 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Zapf | Kurt | MechMt | 28.03.1921 | 15.10.1942 | U-661+ lost Central N.Atlantic |
| Zimmermann | Karl-Heinz | OStrm | 27.08.1912 | 15.10.1942 | U-661+ lost Central N.Atlantic |