| D/S Nailsea Lass | 1917 | Great Britain | | Torpedoed, 1941-2-24 |
| D/S Narkunda | 1920 | Great Britain | | Attacked from air, 1942-11-14 |
| D/S Narva | 1937 | Great Britain | | Fire/Explosion, 1945-1-15 |
| D/S Nascopie | 1912 | Great Britain | | |
| M/T Nassa | 1942 | Great Britain | | |
| T/S Nebraska | 1920 | Great Britain | | Torpedoed, 1944-4-8 |
| D/S Neko | 1891 | Great Britain | | |
| D/S Nela | 1916 | Great Britain | | |
| M/T Neocardia | 1943 | Great Britain | | |
| D/S Nerissa | 1926 | Great Britain | | Torpedoed, 1941-5-1 |
| M/S Newbrough | 1941 | Great Britain | | |
| D/S New Brunswick | 1919 | Great Britain | | Torpedoed, 1942-5-21 |
| D/S New Columbia | 1920 | Great Britain | | Torpedoed, 1943-10-31 |
| Flytende hvalkokeri D/S New Sevilla | 1900 | Great Britain | | Torpedoed, 1940-9-20 |
| D/S New Texas | 1919 | Great Britain | | |
| M/T Nicania | 1942 | Great Britain | | |
| D/S Ninghai | 1925 | Great Britain | | |
| M/S Norman Commodore | 1972 | Great Britain | | |
| M/S Normand Progress | 1999 | Great Britain | | |
| D/S North Britain | 1940 | Great Britain | | Torpedoed, 1943-5-5 |
| D/T North Star | 1918 | Great Britain | | |
| T/S North Star | 1930 | Great Britain | | |
| D/S Norwegian | 1921 | Great Britain | | |