- Niatok module
- Niatoko
- Nibia
- Nibiru
- Nibiru III
- Nibix
- Nibo Hoq
- Nibor
- Niburon IV
- Niccolo Mazzetti
- Niccolò Machiavelli
- Niccolò Machiavelli (mirror)
- Nice Housenik
- Nichelle Nichols
- Nichelle Talbot
- Nicholas
- Nicholas Locarno
- Nicholas Martin
- Nicholas Meyer
- Nicholas Minecci
- Nichols
- Nicholson
- Nici
- Nick Fury
- Nick Keller
- Nick Minecci
- Nick Runge
- Nick Silver
- Nickel
- Nicki Kreitzman
- Nicky Rea
- Nicky the Nose
- Nicolas Bouvier
- Nicolas Sardopolous
- Nicole
- Nicole (disambiguation)
- Nicole Falsetti
- Nicole Hart
- Nicole Ousmanova
- Nicole de Boer
- Nicor class
- Nicotinotica
- Nidani Ledrah
- Nidd
- Niditoricumtu Ro
- Niel Wray
- Niels Bohr
- Niels Bohr Teaching Institute
- Nigel
- Nigel Holmes
- Night
- Night's Breath class
- Night-shift commander
- Night Alien
- Night Alliance
- Night King
- Night Terrors
- Night Whispers
- Night of Empty Hands
- Night of the Comet
- Night of the Killer Androids
- Night of the Vulture
- Night of the Wolves
- Nightclaw
- Nightingale
- Nightingale (episode)
- Nightingale Woman
- Nightmare
- Nightmare 1
- Nightmare of Orion
- Nightmares
- Nightshade
- Nihydron
- Nihydron destroyer
- Nihydron system
- Nijen
- Nijen Danehl
- Nijian
- Nijian Moon
- Nijil
- Nijil (disambiguation)
- Niki
- Nikita
- Nikita Khrushchev
- Nikitushka Lomov
- Nikitushka Lomov (myth)
- Nikkatsu
- Niklon
- Nikolai Andropov
- Nikolai Rozhenko
- Nikolai Valtane
- Nikolas Kyprios
- Nikolasi
- Nikolayev
- Nikros
- Niktlin
- Nilan Artir
- Nilani Kahn
- Nile
- Niles
- Niles Gutterman
- Nillimite
- Nilona
- Nilor
- Nils Carlstrom
- Nils Pitcairn
- Nilva
- Nilva's Jaunt
- Nilz
- Nilz Baris
- Nima
- Nimara
- Nimaria class
- Nimas Corfew
- Nimaz
- Nimbi Array
- Nimbi Massif
- Nimbosian ruins
- Nimbus
- Nimbus (disambiguation)
- Nimbus III
- Nimbus III (SCISEC Brief)
- Nimbus class
- Nimbus sector
- Nimembeh
- Nimian bud pollen
- Nimian sea salt
- Nimijk
- Nimitz
- Nimitz (FX-33)
- Nimitz (disambiguation)
- Nimitz I
- Nimitz II
- Nimitz II-A
- Nimitz III
- Nimitz class
- Nimora
- Nimori Ceti
- Nimrod (disambiguation)
- Nimrod class
- Nimthu
- Nimur
- Nin'Yan
- Nina Kiriki Hoffman
- Nina Larson
- Nina Popov
- Nine Stages of the Prophet Amadan
- Nine Suns
- Nine Tribes
- Nine Worlds Confederation
- Nine of Eighteen
- Niners
- Niners vanity shield
- Nineteen Eighty-Four
- Ninety-Three Hours
- Ning'tao class
- Ninhursag
- Ninja
- Nino Orsini
- Nintendo
- Nintendo DS
- Nintendo Wii
- Ninth planets
- Niobe
- Niobe (disambiguation)
- Niobean
- Niobium
- Nipaj
- Nipujan bush
- Nir'at class
- Nirah
- Nirak
- Niral Ekron
- Nirem
- Niro
- Nirsrose
- Nirvana (CM-2)
- Nirvat Sanctuary
- Nis Thamar
- Nishor
- Nispavan I
- Nissa Rel
- Nistaan Bur
- Nistral
- Nistrim Rugova
- Nistrim Zaran
- Nisus
- Nisus Civic Center
- Nisverin th'Menchal
- Nita Bharad
- Nitara
- Nitor
- Nitram
- Nitrate
- Nitrilin
- Nitrogen
- Nivalli
- Nivan
- Nivoch
- Nivochan asteroid runner
- Nivra
- Niwa Awath-mánë ri d'Hennish enu-ma'Qe
- Niwara
- Nix
- Nix (Ferengi)
- Nixer
- Nixon
- Nizak
- Nizhisht
- Nizhrak
- Nizik
- Nizor
- Nizron
- Nizsk
- Njam
- Njura
- Njura system
- Njuran
- Nn'verian
- Nnamdi Uhuro
- Nnerhin tr'Hwersuil s'Khellian
- Nniol t'AAnikh
- No'Mat
- No'Mat (planet)
- No'Var Outpost
- No Compromise
- No Compromise, Part II
- No Compromise, Part III
- No Compromise Part One
- No Cure For That
- No Limits
- No Man's Land (audio)
- No Man's Land (novel)
- No Man's Land (region)
- No Quarter
- No Second Troy
- No Small Parts
- No Surrender
- No Surrender (compilation)
- No Time Like the Past
- No Time Like the Past (comic)
- No Time Like the Past (novel)
- No Time Like the Present
- No Where Cantina
- No Win Scenario
- Noah
- Noah (planet)
- Noah Mannick
- Noah Powell
- Nob-noch
- Nob Hill
- Noban
- Nobel Prize
- Nobel class
- Nobelium
- Nobira
- Nobis
- Noble
- Noble Born
- Noble class (cruiser)
- Noble class (laboratory vessel)
- Nobody Knows the Tribbles I've Seen
- Nobunaga
- Nobunaga (disambiguation)
- Noca
- Nocona's system
- Nocroma Bayside
- Nocturnal crawling spine
- Nod
- Nodell 16
- Nodir
- Nodogascur
- Nodram
- Noel (disambiguation)
- Noel DeVrie
- Nofia
- Nog
- Nog (disambiguation)
- Nog (mirror)
- Nogar
- Noggik tree
- Noggra, son of Doqi
- Noguchi
- Nogura (cat)
- Nogura (disambiguation)
- Noh
- Noh-Jay Consortium
- Noh Hask
- Nohin Yiamed-Ba
- Noi
- Noir
- Nokalana Sea
- Nokar
- Nokar (Colonel)
- Nokar (disambiguation)
- Nokia
- Nol-Ennis
- Nolan
- Nolan (Bajoran)
- Nolath
- Noleus
- Nolos
- Nolotai
- Nolram
- Nolth
- Nolth wool
- Nom'prok
- Nomab
- Nomad
- Nomad (disambiguation)
- Nomad (mirror)
- Nomad class (cruiser)
- Nomad class (escort)
- Nome
- Nomias Gzin
- Non, je ne regrette rien
- Non-Apology
- Non-aggression pact
- Non-corporeal lifeform
- Non Sequitur
- Nona
- Nonahul
- Nonda
- Nondisclosure class
- Nondoran tomato
- None But the Brave
- Nonspace
- Nooaja
- Nood
- Noodles
- Noodles-vino
- Noonian Soong
- Noonien Soong (mirror)
- Noor
- Noor (disambiguation)
- Noor Daraan
- Nop Tenott
- Nopada
- Nope
- Nor Any Drop to Drink
- Nor Daraan
- Nor Iron Bars a Cage
- Nor class
- Nor the Battle to the Strong
- Nora (disambiguation)