List of legendary creatures (N)
- Nachzehrer – Anthropophagous undead
- Nāga – Nature and water spirits, serpentine or human-serpent hybrids
- Naga fireballs – Spectral fire
- Nagual – Human-animal shapeshifter
- Naiad – Freshwater nymph
- Näkki – Water spirit
- Namahage – Ritual disciplinary demon from the Oga Peninsula
- Namazu – Giant catfish whose thrashing causing earthquakes
- Nando-baba – Old woman who hides under the floor in abandoned storerooms
- Nandi Bear – Monster Bear-like
- Nang Takian – Tree spirit
- Nanom-keea-po-da – Earthquake spirit
- Napaeae – Grotto nymph
- Narasimha – Avatar of Vishnu in the form of half-man/half-lion
- Narecnitsi – Fate spirit
- Nariphon – Pod people
- Nargun – Water monster
- Nasnas – Half-human, half-demon creature with half a body
- Nav' – Ghost
- Nawao – Savage humanoid
- N-dam-keno-wet – Fish-human hybrid
- Neptune – God of freshwater and sea
- Neck – Female water spirit
- Negret – Little people that turn into coins
- Nekomata – Split-tailed magical cat
- Nekomusume – Cat in the form of a girl
- Nemean Lion – Lion with impenetrable skin
- Nephilim – Gigantic sons of Grigori and human women
- Nereid – Nymph daughters of Nereus
- Ngen – Nature spirit
- Nguruvilu – Fox-like water snake
- Nian – Predatory animal
- Night hag – Supernatural creature, commonly associated with the phenomenon of sleep paralysis.
- Nightmarchers – Warrior ghosts
- Nikusui – Monster which appears as a young woman and sucks all of the flesh off of its victim's body
- Nimerigar – Aggressive little people
- Ningyo – Monkey-fish hybrid
- Ninki Nanka – Large reptile, possibly a dragon
- Nisse – House spirit
- Níðhöggr – Dragon
- Nivatakavachas – Ocean demon
- Nix – Female water spirit
- Nobusuma – Supernatural wall, also a monstrous flying squirrel
- Nocnitsa – Nightmare spirit
- Noppera-bō – Faceless ghost
- Nozuchi – Small sea serpent
- Nuckelavee – Malevolent human-horse-fish hybrid
- Nue – Monkey-raccoon dog-tiger-snake hybrid
- Nü Gui – Vengeful female ghost
- Nukekubi – Disembodied, flying head that attacks people
- Nuku-mai-tore – Forest spirit
- Nuli – Humanoid with backwards, eight-toed feet
- Numen – Tutelary spirit
- Nuno – Malevolent little people
- Nuppeppo – Animated chunk of dead flesh
- Nurarihyon – Head-sized ball-like creature that floats in the sea and teases sailors
- Nure-onna – Female monster who appears on the beach
- Nurikabe – Spirit that manifests as an impassable, invisible wall
- Nyami Nyami – Snake-spirit of the Zambezi River
- Nykštukas – Cavern spirit
- Nymph – Nature spirit