| Nibiru | Nibiru cataclysm | Nibley, Utah |
| Nic site | Nicander | Nicanor Duarte |
| Nicaragua | Nicaragua Canal | Nicaraguan córdoba |
| Niccolò de' Conti | Niccolò Machiavelli | Nice |
| Nice (Unix) | Nice Côte d'Azur Airport | NicePlayer |
| Niceritrol | Niche market | Nichita Stănescu |
| Nicholas A. Christakis | Nicholas A. Peppas | Nicholas and Alexandra |
| Nicholas Brothers | Nicholas Crafts | Nicholas Edward Brown |
| Nicholas G. Carr | Nicholas Hilliard | Nicholas Hoult |
| Nicholas II of Russia | Nicholas Lea | Nicholas Murray Butler |
| Nicholas Nahas | Nicholas of Cusa | Nicholas Rescher |
| Nicholas Ridley, Baron Ridley of Liddesdale | Nicholas Shehadie | Nicholas Sparks |
| Nicholasville, Kentucky | Nicholls, Georgia | Nichols (village), New York |
| Nichols Hills, Oklahoma | Nichols, Iowa | Nichols, New York |
| Nichols, South Carolina | Nichols, Wisconsin | Nicholson, Georgia |
| Nicias | Nick Barmby | Nick Bollettieri |
| Nick Bostrom | Nick Calathes | Nick Cannon |
| Nick Carle | Nick Carter (musician) | Nick Clegg |
| Nick Collison | Nick Gomez | Nick Heidfeld |
| Nick Johnson (basketball) | Nick Jonas | Nick Kyrgios |
| Nick Lachey | Nick Martin (educator) | Nick Nolte |
| Nick Offerman | Nick Oudendag | Nick Powell |
| Nick Stahl | Nick Swardson | Nick Viergever |
| Nick Young (basketball) | Nickel | Nickel(II) carbonate |
| Nickel(II) fluoride | Nickel(II) hydroxide | Nickel(II) iodide |
| Nickel(II) oxide | Nickel–cadmium battery | Nickelodeon |
| Nickelodeon Animation Studio | Nickelodeon Arabia | Nickelodeon Kids' Choice Awards |
| Nickelsville, Virginia | Nickerson, Kansas | Nickerson, Nebraska |
| Nicki Aycox | Nicki Minaj | Nicklas Bendtner |
| Nicklas Helenius | Nicklas Pedersen | Nicklback |
| Nickname | Nicktoons | Nicky Butt |
| Nicky Byrne | Nicky Featherstone | Nicky Hilton |
| Nicky Shorey | Nicky Weaver | NiCl2 |
| Niclas Alexandersson | Niclas Ekberg | Niclas Jensen |
| Niclas Kirkeløkke | NICMOS | Nico Christ |
| Nico Claesen | Nico Elvedi | Nico Hülkenberg |
| Nico Pulzetti | Nico Rosberg | Nico Van Kerckhoven |
| Nico van Kerckhoven | Nicocodeine | Nicoderm |
| Nicofuranose | Nicol prism | Nicola Amoruso |
| Nicola Belmonte | Nicola Berti | Nicola Legrottaglie |
| Nicola Madonna | Nicola Mingazzini | Nicola Pavarini |
| Nicola Pozzi | Nicola Rizzoli | Nicolaas Bloembergen |
| Nicolaas Laurens Burman | Nicolae Ceaușescu | Nicolae Dică |
| Nicolae Kovács | Nicolae Negrilă | Nicolae Rainea |
| Nicolae Ungureanu | Nicolaes Maas | Nicolaes Maes |
| Nicolai Boilesen | Nicolai Stepanowitsch Turczaninow | Nicolao Dumitru |
| Nicolas Anelka | Nicolas Appert | Nicolas Batum |
| Nicolas Boileau-Despréaux | Nicolas Bourbaki | Nicolas Bréhal |
| Nicolas Cage | Nicolas de Condorcet | Nicolas Devilder |
| Nicolas Dieuze | Nicolas Douchez | Nicolas Fatio de Duillier |
| Nicolas Frantz | Nicolas Frey | Nicolas Hoydonckx |
| Nicolas Kiefer | Nicolas Léonard Sadi Carnot | Nicolas Lombaerts |
| Nicolas Mahut | Nicolas Maurice-Belay | Nicolas N'Koulou |
| Nicolas Penneteau | Nicolas Petrou | Nicolas Plestan |
| Nicolas Puydebois | Nicolas Rabuel | Nicolas Reyes |
| Nicolas Sahnoun | Nicolas Sanson | Nicolas Sarkozy |
| Nicolas Steno | Nicolas-Joseph Cugnot | Nicolas-Théodore de Saussure |
| Nicolaus Copernicus | Nicolaus Cusanus | Nicolaus of Damascus |
| Nicolás Almagro | Nicolás Amodio | Nicolás Asencio |
| Nicolás Bertolo | Nicolás Burdisso | Nicolás Córdova |
| Nicolás de Piérola | Nicolás Gaitán | Nicolás García |
| Nicolás García Mayor | Nicolás Lapentti | Nicolás Lindley López |
| Nicolás Lodeiro | Nicolás Maduro | Nicolás Massú |
| Nicolás Olivera | Nicolás Otamendi | Nicolás Pareja |
| Nicolás Spolli | Nicolás Vigneri | Nicole Coste |
| Nicole Gale Anderson | Nicole Holofcener | Nicole Jung |
| Nicole Kidman | Nicole Oresme | Nicole Reinhardt |
| Nicole Richie | Nicole Saba | Nicole Scherzinger |
| Nicole Uphoff | Nicole Vaidišová | Nicolet, Quebec |
| Nicolette Pope | Nicollet, Minnesota | Nicollette Sheridan |
| Nicoma Park, Oklahoma | Nicomachus | Nicomorphine |
| Niconico | Nicorvo | Nicosia |
| Nicotiana | Nicotiana alata | Nicotiana glauca |
| Nicotianoideae | Nicotinamide adenine dinucleotide | Nicotinamide adenine dinucleotide phosphate |
| Nicotine | Nicotinic acid | Nicotinsäure |
| Nicotinyl alcohol | Nictitating membrane | Nidhal Guessoum |
| Nidhogg (video game) | Nidovirales | Nidwalden |
| Niederwald, Texas | Nielles-lès-Ardres | Nielles-lès-Bléquin |
| Nielles-lès-Calais | Niello | Niels Bohr |
| Niels Bohr Institute | Niels Giffey | Niels Henrik Abel |
| Niels Kaj Jerne | Niels Ludvig Westergaard | Niels Ryberg Finsen |
| Niels Schneider | Niels-Christian Holmstrøm | Nielsen's spiral |
| Nielsen–Olsen string | Nielsville, Minnesota | Niemann-Pick disease |
| Niemeyer | Nieuport | Nieuport Nighthawk |
| Nifedipine | Nifenazone | Niftawayh |
| Nifuroxazide | Nifurtoinol | Nigeh |
| Nigel Bishop | Nigel Clough | Nigel Codrington |
| Nigel de Jong | Nigel Hawthorne | Nigel Martyn |
| Nigel Quashie | Nigel Reo-Coker | Nigel Short |
| Nigella | Nigella damascena | Nigella deserti |
| Nigella Lawson | Nigella noeana | Nigella oxypetala |
| Nigella sativa | Nigella tenuifolia | Nigella tuberculata |
| Niger | Niger Premier League | Nigeria |
| Nigeria Airways | Nigeria Airways Flight 2120 | Nigeria Premier League |
| Nigerian naira | Nigga | Night |
| Night at the Museum | Night at the Museum: Battle of the Smithsonian | Night at the Museum: Secret of the Tomb |
| Night Flight from Moscow | Night of the Eagle | Night of the Gliders |
| Night of the Living Dead | Night of the Long Knives | Night sweats |
| Night Train to Lisbon (film) | Night vision | Night vision device |
| Nightcrawler (film) | Nightgown | Nightingale Pledge |
