Encyclopedias, Almanacs, Transcripts, and Maps
- Nikolais, Theodore Alwin ("Nik")
- Nilsson, Harry Edward, III
- Nimuendajú, Curt (1883–1945)
- Ningerum
- Niño, Pedro Alonso (c. 1468–c. 1505)
- Niños Héroes
- Nirvāṇa
- Nisbet, Robert Alexander
- Nishi Amane (1829–1897)
- Nishida, Kitarō (1870–1945)
- Nisqually
- Nissan
- Nitrate Industry
- Nitschke, Ray(mond) Ernest
- Niueans
- Nivaclé
- Nivkh
- Nivkhs
- Nixon, Pat(ricia)
- Niza, Marcos de (?–1558)