| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| M/S Indochinois | 1939 | Great Britain | ||
| D/S Industria | 1940 | Great Britain | ||
| D/S Inger Toft | 1920 | Great Britain | ||
| D/T Inverrosa | 1925 | Great Britain | ||
| D/T Iroquois | 1907 | Great Britain | ||
| D/S Isac | 1926 | Great Britain | ||
| M/S Jean L. D. | 1936 | Great Britain | ||
| T/S Jeannette Skinner | 1917 | Great Britain | ||
| M/S Jedmoor | 1928 | Great Britain | ||
| D/S Johanne Justesen | 1909 | Great Britain | ||
| M/T John A. Brown | 1938 | Great Britain | ||
| D/S John Cabot | 1921 | Great Britain | ||
| D/S Josewyn | 1919 | Great Britain | ||
| D/S Kaikorai | 1918 | Great Britain | ||
| M/S Kaikoura | 1937 | Great Britain | ||
| D/S Kalarand | 1906 | Great Britain | ||
| D/S Kalingo | 1927 | Great Britain | Torpedoed, 1943-1-18 | |
| D/S Karagola | 1917 | Great Britain | ||
| M/T Kars | 1939 | Great Britain | Torpedoed, 1942-2-22 | |
| D/S Katie Moller | 1919 | Great Britain | ||
| Ketos | 1919 | Great Britain | ||
| T/S Kiangsu | 1921 | Great Britain | Hijacked, 1941-12-8 | |
| D/S Kingston Hill | 1940 | Great Britain | Torpedoed, 1941-6-8 | |
| D/S Kintore | 1903 | Great Britain | Ran aground, 1944-9-1 | |
| D/S Kirsten Mærsk | 1921 | Great Britain |