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TH (1)| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| D/S Jernland | 1905 | Norway | ||
| D/S Jesse Billingsley | 1943 | USA | ||
| D/S Jetta | 1914 | Norway | ||
| M/T J. H. Senior | 1931 | Panama | ||
| M/S Jim | 1941 | Norway | ||
| M/S J.M. | 1943 | Norway | Attacked from air, 1945-1-28 | |
| D/S Joannis | 1909 | Greece | Torpedoed, 1942-9-16 | |
| D/S Joel R. Poinsett | 1943 | USA | Ran aground, 1944-3-4 | |
| RS Johan Bruusgaard | Unknown | Norway | ||
| M/S Johan Hjort | 1932 | Norway | ||
| D/S Johan Jebsen | 1894 | Norway | ||
| D/S Johanna | 1881 | Sweden | ||
| D/S Johanne Justesen | 1909 | Great Britain | ||
| M/S Johannes | 1908 | Norway | ||
| M/T John A. Brown | 1938 | Great Britain | ||
| D/S John A. Campbell | 1943 | USA | ||
| D/S John A. Rawlins | 1942 | USA | ||
| D/S John A. Roebling | 1943 | USA | ||
| M/S John Bakke | 1929 | Norway | ||
| D/S John B. Lennon | 1943 | USA | ||
| M/S John Browne | 1890 | Norway | ||
| D/S John Cabot | 1921 | Great Britain | ||
| D/S John Catron | 1943 | USA | ||
| D/S John C. Calhoun | 1942 | USA | ||
| D/S John Colter | 1943 | USA |