Nikolai Alekseevich Klyuev, was a notable Russian poet. He was influenced by the symbolist movement, intense nationalism, and a love of Russian folklore.
Nikolai Dmitriyevich Kondratiev was a Russian Soviet economist and proponent of the New Economic Policy (NEP) best known for the business cycle theory known as Kondratiev waves.
Nikolai Iosifovich Konrad was a Soviet philologist and historian, described in the Great Soviet Encyclopedia as "the founder of the Soviet school of Japanese scholars".
Nikolai Vladimirovich Krogius was a Russian chess Grandmaster, International Arbiter (1985), psychologist, chess coach, chess administrator, and author. He won several tournament titles at Sochi and in Eastern European events, and appeared in seven Soviet finals from 1958–71. His peak was in 1967 when he ranked 18th in the world for a time. He earned his doctorate in psychology, and specialized in sports psychology. He coached World Champion Boris Spassky for several years, also served as chairman of the USSR Chess Federation, and co-authored five chess books. He was the co-winner of the 1993 World Senior Chess Championship.
Nikolai Vasilyevich Krylenko was an Old Bolshevik and Soviet politician. Krylenko served in a variety of posts in the Soviet legal system, rising to become People's Commissar for Justice and Prosecutor General of the Russian Soviet Federated Socialist Republic. He was executed during the Great Purge.
Nikolai Stepanovich Kurochkin was a Russian poet, editor, translator and essayist. Writing under numerous pseudonyms, Kurochkin published both satirical poems and serious essays mostly in Otechestvennye Zapiski, of which since 1868 he was a major contributor, and Iskra, the magazine he co-edited. In 1865-1867 he edited the magazine Knizhny Vestnik. Vasily and Vladimir Kurochkins were his brothers.
