Nalassus laevioctostriatus (order Coleoptera)
Nanorrhinum elegans (synonymous, order Lamiales)
Narcissus assoanus (order Asparagales)
Narcissus bulbocodium (order Asparagales)
Narcissus dubius (order Asparagales)
Narcissus poeticus (order Asparagales)
Narcissus rupicola (order Asparagales)
Narcissus tazetta (order Asparagales)
Narcissus triandrus (order Asparagales)
Narduroides salzmannii (order Poales)
Naroma varipes (order Lepidoptera)
Nassarius reticulata (synonymous, order Sorbeoconcha)
Nassarius reticulatus (order Sorbeoconcha)
Natica fanel (synonymous, order Sorbeoconcha)
Natica hebraea (synonymous, order Sorbeoconcha)
Naticarius hebraeus (order Sorbeoconcha)
Natrix maura (order Squamata)
Neatostema apulum (order Boraginales)
Neckera besseri (order Hypnales)
Neckera crispa (order Hypnales)
Nectandra coriacea (order Laurales)
Nectria episphaeria (synonymous, order Hypocreales)
Neoalsomitra podagrica (synonymous, order Cucurbitales)
Neoalsomitra schefferiana (order Cucurbitales)
Neoasterolepisma spectabilis (order Zygentoma)
Neoblechnum brasiliense (order Polypodiales)
Neobuxbaumia polylopha (order Caryophyllales)
Neolitsea sericea (order Laurales)
Neomys fodiens (order Soricomorpha)
Neopycnodonte cochlear (order Ostreoida)
Neoregelia carolinae (order Poales)
Neottia nidus-avis (order Asparagales)
Nepa cinerea (order Hemiptera)
Nepenthes alata (order Caryophyllales)
Nepenthes madagascariensis (order Caryophyllales)
Nepeta sibirica (order Lamiales)
Nephelium lappaceum (order Sapindales)
Nephila edulis (order Araneae)
Nephila inaurata (order Araneae)
Nephila madagascariensis (synonymous, order Araneae)
Nephrolepis biserrata (order Polypodiales)
Nephrolepis cordifolia (order Polypodiales)
Nephroma arcticum (order Peltigerales)
Nephroma resupinatum (order Peltigerales)
Nephroma tropicum (order Peltigerales)
Nephromopsis cucullata (order Lecanorales)
Nephromopsis nivalis (order Lecanorales)
Nephrotoma appendiculata (order Diptera)
Neritina natalensis (order Neritimorpha)
Nesolechia oxyspora (order Lecanorales)
Netocia cuprea (order Coleoptera)
Nezara viridula (order Hemiptera)
Nicotiana glauca (order Solanales)
Nicotiana longiflora (order Solanales)
Nicotiana tabacum (order Solanales)
Nidularia deformis (order Agaricales)
Nigella damascena (order Ranunculales)
Nigrovothelium inspersotropicum (order Trypetheliales)
Niphotrichum canescens (order Grimmiales)
Nitella hyalina (order Charales)
Nitella tenuissima (order Charales)
Noccaea caerulescens (order Brassicales)
Noctua pronuba (order Lepidoptera)
Nodolittorina punctata (synonymous, order Sorbeoconcha)
Nogopterium gracile (order Hypnales)
Nolina longifolia (order Asparagales)
Nolina recurvata (synonymous, order Asparagales)
Nonnea echioides (order Boraginales)
Nothofagus betuloides (order Fagales)
Nothofagus pumilio (order Fagales)
Notiophilus biguttatus (order Coleoptera)
Nostoc commune (order Nostocales)
Nostoc microscopicum (order Nostocales)
Nostoc sp. (order Nostocales)
Nostoc verrucosum (order Nostocales)
Nothoscordum x borbonicum (order Asparagales)
Notocactus schlosseri (synonymous, order Caryophyllales)
Notonecta glauca (order Hemiptera)
Notoplana alcinoi (order Polycladida)
Nucella lapillus (order Sorbeoconcha)
Nummulites perforatus (order Rotaliida)
Nuphar advena (order Nymphaeales)
Nycticorax nycticorax (order Pelecaniformes)
Nyctobrya muralis (synonymous, order Lepidoptera)
Nyctophila reichii (order Coleoptera)
Nymphaea alba (order Nymphaeales)
Nuphar tetragona (order Nymphaeales)
Nypa fruticans (order Arecales)