| Novelle (GER) 1980 | Northfields (USA) 1968 | Northern Dancer (CAN) 1961 | Nearctic (CAN) 1954 |
| Natalma (USA) 1957 | |||
| Little Hut (USA) 1952 | Occupy (USA) 1941 | ||
| Savage Beauty (USA) 1934 | |||
| Nigeria (GB) 1966 | Right Boy (IRE) 1954 | Impeccable (GB) 1944 | |
| Happy Ogan (?) 1947 | |||
| Nona (GER) 1957 | Oise (FR) 1949 | ||
| Naxos (GER) 1950 |