| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| D/S Josiah Parker | 1942 | USA | ||
| D/S Josiah Royce | 1943 | USA | ||
| D/S Josiah Snelling | 1943 | USA | ||
| D/S Juan Cabrillo | 1942 | USA | ||
| D/S Juan De Fuca | 1943 | USA | ||
| D/S Junipero Serra | 1942 | USA | ||
| T/S Katrina Luckenbach | 1918 | USA | ||
| D/S Keith Vawter | 1943 | USA | ||
| T/S Kenmar | 1919 | USA | ||
| T/T T2 Kings Canyon | 1945 | USA | ||
| D/S Kopperston | 1919 | USA | ||
| D/S La Perla | 1925 | USA | ||
| D/S Larranga | 1917 | USA | ||
| D/S Lebore | 1923 | USA | Torpedoed, 1942-6-14 | |
| D/S Lee S. Overman | 1943 | USA | ||
| D/S Leland Stanford | 1942 | USA | ||
| D/S Leslie | 1919 | USA | Torpedoed, 1942-4-13 | |
| D/S Leslie M. Shaw | 1942 | USA | ||
| D/S L.H.McNelly | 1943 | USA | ||
| T/S Liberty Glo | 1919 | USA | ||
| D/S Lihue | 1919 | USA | Torpedoed, 1942-2-23 | |
| D/T L.J. Drake | 1918 | USA | Torpedoed, 1942-6-5 | |
| Lekter Lloyd I. Seaman | 1935 | USA | ||
| D/S Loammi Baldwin | 1944 | USA | ||
| T/T T2 Logan`s Fort | 1945 | USA |