| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| D/S Copeland | 1923 | Great Britain | ||
| D/S Corlock | 1913 | Great Britain | ||
| M/S Cornelia Viking | 1977 | Great Britain | ||
| D/T Coronda | 1899 | Great Britain | ||
| D/S Corrales | 1930 | Great Britain | ||
| D/S Corrimal | 1911 | Great Britain | ||
| D/S Covalt | 1919 | Great Britain | ||
| D/S Cragpool | 1928 | Great Britain | ||
| HMT (trawler) Craig Alvah | Unknown | Great Britain | ||
| D/S Craigcoilleach | 1917 | Great Britain | ||
| D/S Cressdene | 1936 | Great Britain | Sunk by mine, 1942-3-17 | |
| D/S Cristales | 1926 | Great Britain | Torpedoed, 1942-5-12 | |
| M/S Cromarty | 1936 | Great Britain | ||
| D/S Culebra | 1919 | Great Britain | Torpedoed, 1942-1-25 | |
| D/S Dago | 1902 | Great Britain | Attacked from air, 1942-3-15 | |
| D/S Daisy Moller | 1911 | Great Britain | Torpedoed, 1943-12-13 | |
| D/S Dalcairn | 1927 | Great Britain | Torpedoed, 1940-9-21 | |
| D/S Dalcross | 1930 | Great Britain | ||
| Stålfullrigger Dalgonar | 1892 | Great Britain | ||
| M/S Dangeld | 1969 | Great Britain | ||
| D/S Danubian | 1898 | Great Britain | ||
| D/S Dartford | 1930 | Great Britain | Torpedoed, 1942-6-12 | |
| D/T Dean Emery | 1919 | Great Britain | ||
| M/S Delius | 1937 | Great Britain | ||
| D/S Deptford | 1931 | Great Britain | Torpedoed, 1939-12-13 |