| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| 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 | ||
| M/S Siglion | 1966 | 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 | ||
| D/S Sinkiang | 1915 | Great Britain | ||
| D/S Sirda | 1912 | Great Britain | ||
| D/S Sire | 1938 | Great Britain | Torpedoed, 1941-5-31 | |
| TSS Sir John Hawkins | 1929 | Great Britain | ||
| D/S Sir Liege | 1908 | Great Britain | ||
| D/S Sirra | 1929 | Great Britain | ||
| D/S Sistra | 1937 | Great Britain | ||
| D/S Sixaola | 1911 | Great Britain | ||
| D/S Sluga | 1929 | Great Britain | ||
| D/S Sobkra | 1937 | Great Britain | ||
| M/S Sobo | 1937 | Great Britain | ||
| D/S Soika | 1925 | Great Britain | ||
| D/S Solon II | 1925 | Great Britain | ||
| D/S Solvra | 1937 | Great Britain |