| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| M/S Myrland | 1918 | Norway | ||
| D/S Nebb | 1930 | Norway | ||
| M/K Njål (H 217 AV) | 1937 | Norway | ||
| Kanonbåt 2. klasse Nor | 1878 | Norway | Hijacked, 1940-4-14 | |
| M/S Nordland (patruljefartøy 1940) | 1935 | Norway | ||
| M/S Nordlys (H 131 FJ) | Unknown | Norway | ||
| M/S Nordlys (H 67 B) | Unknown | Norway | ||
| M/S Nordsjøen (H 42 BO) | Unknown | Norway | 1941-10-23 | |
| Panserskip Norge | 1899 | Norway | Torpedoed, 1940-4-9 | |
| D/S Nor II | 1942 | Norway | ||
| M/K Nornes (M 48 V) (DSTO) | 1882 | Norway | ||
| M/B Nyken (SF 64 SV) | Unknown | Norway | 1941-12-10 | |
| Minesveiper NYMS 406 (Rana) | 1943 | Norway | ||
| M/B Olav (M 73 V) | 1894 | Norway | ||
| Minelegger Olav Tryggvason | 1934 | Norway | ||
| M/T Ole Jacob | 1939 | Norway | Hijacked, 1940-11-10 | |
| M/S Opo | 1945 | Norway | ||
| D/S Oter I | 1929 | Norway | ||
| D/S Polar 6 | 1925 | Norway | ||
| D/S Polaric (M 13 HD) (DSTO) | 1917 | Norway | ||
| D/S Pol I | 1926 | Norway | ||
| D/S Pol II | 1926 | Norway | ||
| D/S Pol III | 1926 | Norway | ||
| D/S Pol IV | 1926 | Norway | ||
| D/S Pol V | 1925 | Norway |