| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| M/S Selandia | 1938 | Great Britain | ||
| D/S Sellinge | 1916 | Great Britain | Sunk by mine, 1943-9-6 | |
| D/S Semla | 1924 | Great Britain | ||
| D/S Seringa | 1913 | Great Britain | ||
| D/S Serula | 1918 | Great Britain | ||
| D/S-flytende kokeri Sevilla | 1900 | Great Britain | ||
| D/S Sevra | 1929 | Great Britain | Sunk by mine, 1940-11-6 | |
| D/S Sheaf Field | 1923 | Great Britain | Sunk by mine, 1940-10-28 | |
| D/S Sheelavati | 1921 | Great Britain | ||
| M/T Shelbrit 4 | 1928 | Great Britain | ||
| D/S Shera | 1929 | Great Britain | Ran aground, 1942-3-9 | |
| D/S Shika | 1929 | Great Britain | ||
| D/S Shinfu | 1901 | Great Britain | ||
| D/T Shinwha | 1904 | Great Britain | ||
| D/T Shirvan | 1925 | Great Britain | ||
| D/S Shova | 1912 | Great Britain | ||
| D/S Shusa | 1929 | Great Britain | ||
| D/S Siam | 1903 | Great Britain | Shuttled, 1942-3-? | |
| M/S Siam II | 1913 | Great Britain | Torpedoed, 1942-9-30 | |
| D/S Sigfra | 1937 | Great Britain | ||
| D/S-hvalfanger Silesia | 1912 | Great Britain | ||
| D/S Silja | 1929 | Great Britain | ||
| D/S Silva | 1924 | Great Britain | ||
| M/S Silverguava | 1927 | Great Britain | ||
| D/S Simbra | 1937 | Great Britain |