Nicephorus Gregoras was a Greek astronomer, historian, and theologian.

Nichiren was a Japanese Buddhist priest and philosopher of the Kamakura period.

Nichita Stănescu was a Romanian poet and essayist.

Nicholas Abercrombie is a British sociologist and retired academic. He was Professor of Sociology at Lancaster University from 1990 to 2004.

Nicholas Adontz was an Armenian historian, specialising in Byzantine and Armenian studies, and a philologist. Adontz was the author of Armenia in the Period of Justinian, a highly influential work and landmark study on the social and political structures of early Medieval Armenia.

Nikolay Nikolayevich Afanasiev was an Eastern Orthodox theologian who was ordinary professor of the St. Sergius Orthodox Theological Institute in Paris.

Nicholas Allan is a British children's writer and illustrator.

Nicholas Amhurst was an English poet and political writer.

General Nicholas Nikolaievich Annenkov was an influential Russian General of the Infantry, Governor-General of Kiev and Bessarabia, and member of the State Privy Council. He was the brother of prominent Russian poet, Varvara Annenkova.

Nicholas Birns is a scholar of literature, including fantasy and Australian literature. As a Tolkien scholar he has written on a variety of topics including "The Scouring of the Shire" and Tolkien's biblical sources. His analysis of the writings of Anthony Powell and Roberto Bolaño has been admired by scholars.