| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| M/S Kerak | 1972 | Norway | ||
| Bark Kerdalia | 1863 | Norway | ||
| D/S Keret | 1927 | Norway | Torpedoed, 1940-8-22 | |
| M/S Kerroch | 1943 | Norway | ||
| M/S Kerroch | 1921 | Norway | ||
| M/S Ketlin | 1967 | Norway | ||
| Ketos | 1919 | Great Britain | ||
| Stålbark Ketty | 1895 | Norway | ||
| D/T Ketty Brøvig | 1918 | Norway | Hijacked, 1941-2-2 | |
| M/S Ketty Brøvig | 1984 | Norway | ||
| M/S Kexholm | 1937 | Sweden | Attacked from air, 1941-4-12 | |
| M/T Key Bora | 2006 | Gibraltar | ||
| M/T Key Fighter | 1989 | Malta | ||
| M/T Key Fjord | 1990 | Norway | ||
| M/T Key Marmara | 2003 | Malta | ||
| D/S Keymont | 1928 | Panama | ||
| M/T Key Star | 1992 | Cyprus | ||
| M/T Key Sund | 1993 | Norway | ||
| D/S Key West | 1917 | Norway | ||
| D/S K. G. Meldahl | 1938 | Norway | Torpedoed, 1942-11-10 | |
| D/S K.G. Meldahl | 1948 | Norway | ||
| M/S Khan | 1967 | Norway | ||
| T/T Khannur | 1977 | Liberia | ||
| Bark Khedive | 1870 | Norway | ||
| T/S Kiangsu | 1921 | Great Britain | Hijacked, 1941-12-8 |