| NGC 949 | NGC 95 | NGC 952 |
| NGC 953 | NGC 955 | NGC 963 |
| NGC 982 | NGC 988 | Ngerulmud |
| Nginx | NGO | Ngurah Rai International Airport |
| Nguyễn Minh Triết | Nguyễn Ngọc Loan | Nguyễn Tấn Dũng |
| NH2OH | NH3 | NH4Br |
| NH4F | NH4HCO3 | NH4HSO4 |
| NH4NO3 | NH4OH | NH4SCN |
| NH4SH | NH90 | NHIndustries NH90 |
| NHK | NHK World | Nhlanhla Khuzwayo |
| NHS | NHS National Institute for Health and Clinical Excellence | Ni |
| Ni Badar | NI3 | Nia Long |
| Nia Vardalos | Niacin | Niagara (town), Wisconsin |
| Niagara, New York | Niagara, North Dakota | Niagara, Wisconsin |
| NIAID ChemDB | Niak | Nialamide |
| Niall Matter | Niall Quinn | Niamey |
| Niaprazine | Niar, Ardabil | Nişancı |
| Niğde Province | Niša Saveljić | Niña Amada Mía (telenovela) |
| Nibble | Nibble fish | 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 |
