| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| D/S Sport | 1898 | Norway | ||
| D/S Sposa | 1926 | Great Britain | ||
| D/S Spro | 1890 | Norway | ||
| D/S Spurt | 1918 | Norway | ||
| D/S Stabil | 1895 | Norway | Shelled by gunfire, 1944-3-22 | |
| D/S Stadion II | 1914 | Norway | ||
| D/S Stad Maastricht | 1924 | Netherlands | ||
| D/S Stad Schiedam | 1911 | Netherlands | Fire/Explosion, 1940-9-16 | |
| M/S Staffordshire | 1929 | Great Britain | ||
| T/S Stal | 1921 | Denmark | ||
| D/S Stalheim | 1936 | Norway | Sunk by mine, 1940-7-31 | |
| D/S Stalheim | 1912 | Norway | ||
| M/S Stalowa Wola | 1925 | Poland | ||
| D/S Stamatios G. Embiricos | 1936 | Greece | Shelled by gunfire, 1941-9-24 | |
| D/S Stamos | 1914 | Greece | ||
| M/S Stamsund | 1939 | Norway | Requisitioned/confiscated by Axis power, 1940-?-? | |
| D/T Standard | 1914 | Panama | ||
| D/S Standard | 1930 | Norway | Torpedoed, 1944-10-14 | |
| T/S St. Andrew | 1932 | Great Britain | ||
| D/S Stanforth | 1915 | Great Britain | ||
| D/S Stanhall | 1932 | Great Britain | Torpedoed, 1940-5-30 | |
| D/S Stanja | 1915 | Norway | ||
| T/T Stanvac Cape Town | 1941 | Panama | ||
| T/T Stanvac Manila | 1941 | Panama | ||
| T/T Stanvac Wellington | 1941 | Panama |