| Nematoda | EUKARYA>UNIKONTA>OPISTHOKONTA>ANIMALIA>BILATERIA>PROTOSTOMATA>ECDYSOZOA>NEMATOIDA>NEMATODA |
| Nematoida | see Ecdysozoa |
| Nematomorpha | EUKARYA>UNIKONTA>OPISTHOKONTA>ANIMALIA>BILATERIA>PROTOSTOMATA>ECDYSOZOA>NEMATOIDA>NEMATOMORPHA |
| Nemertea | EUKARYA>UNIKONTA>OPISTHOKONTA>ANIMALIA>METAZOA>BILATERIA>PROTOSTOMATA>SPIRALIA>TROCHOZOA>EUTROCHOZOA>NEMERTEA |
| Neocallimastigomycota | EUKARYA>OPISTHOKONTA>UNIKONTA>FUNGI>BASAL FUNGI>NEOCALLIMASTIGOMYCOTA |
| Nonvascular Embryophytes | see Viridiplantae |
| Nymphaeopsida | EUKARYA>ARCHAEPLASTIDA>VIRIDIPLANTAE>STREPTOBIONTA>EMBRYOPHYTA>TRACHEOPHYTA>SPERMOPHYTA>ANGIOSPERMOPHYTA>NYMPHAEOPSIDA |
