| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| Korvett HNoMS Tunsberg Castle | 1944 | Norway | Sunk by mine, 1944-12-12 | |
| Undervannsbåt HNoMS Ula (1) | 1943 | Norway | ||
| Undervannsbåt HNoMS Uredd | 1941 | Norway | Sunk by mine, 1943-2-10 | |
| Undervannsbåt HNoMS Utsira (1) | 1944 | Norway | ||
| Bevoktningsbåt HNoMS Valder | 1906 | Norway | ||
| Minesveiper HNoMS Vardø | 1932 | Norway | ||
| Ubåtjager HNoMS Vigra | 1943 | Norway | ||
| Torpedojager HNoMS Æger (2) | 1936 | Norway | Attacked from air, 1940-4-9 | |
| D/S Hodnaberg | 1922 | Norway | ||
| M/S Hodnafjell | 1916 | Norway | ||
| M/S Holla | 1925 | Norway | ||
| Hollandia | Unknown | Norway | ||
| D/S Holmestrand | 1907 | Norway | ||
| D/S Holsenøy | 1885 | Norway | ||
| D/S Homborsund | 1891 | Norway | ||
| T/T T2 Honningsvaag | 1945 | Norway | ||
| D/S Honnør | 1936 | Norway | ||
| D/S Hop | 1916 | Norway | Torpedoed, 1940-2-4 | |
| M/S Hopeville | 1942 | Norway | ||
| M/S Hordaland | 1937 | Norway | ||
| D/S Hornelen | 1866 | Norway | ||
| M/K Hornfjell (N 11 BØ) (DSTO) | 1914 | Norway | ||
| M/S Hornøy | 1938 | Norway | Ran aground, 1944-11-3 | |
| D/S Horten | 1897 | Norway | ||
| D/S Hosanger | 1911 | Norway | Torpedoed, 1940-1-27 |