| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| M/S Trygg | 1937 | Norway | ||
| D/S Trygg 5 | 1878 | Norway | ||
| M/S Trygge | 1938 | Norway | ||
| M/K Trygg I | 1904 | Norway | ||
| M/B Trygg (M 37 HØ) | Unknown | Norway | 1941-12-31 | |
| D/S Trygve | 1877 | Norway | ||
| Trysfjord | Unknown | Norway | ||
| D/S Trænen | 1903 | Norway | ||
| M/S Tudor | 1930 | Norway | Torpedoed, 1940-6-19 | |
| D/S Tugela | 1921 | Norway | ||
| D/S Tuira | 1912 | Panama | Torpedoed, 1940-8-20 | |
| M/S Tulane | 1940 | Norway | Requisitioned/confiscated by Axis power, 1940-?-? | |
| T/S Tulsa | 1919 | USA | ||
| D/S Tune | 1916 | Norway | ||
| D/S Tungenes | 1922 | Norway | Shelled by gunfire, 1945-1-24 | |
| M/S Tungsha | 1924 | Norway | ||
| D/S Tunisia | 1927 | Great Britain | Attacked from air, 1941-8-4 | |
| D/S Tunni | 1919 | Norway | Shuttled, 1942-3-3 | |
| M/S Tureby | 1936 | Great Britain | ||
| M/T Turicum | 1928 | Norway | Requisitioned/confiscated by Axis power, 1940-6-? | |
| D/S Turkistan | 1939 | Great Britain | ||
| D/S Turrialba | 1909 | USA | ||
| D/S Turul | 1916 | Panama | ||
| Jernfullrigger Tusitala | 1883 | USA | ||
| M/S Tusna | 1922 | Norway |