Nikolay Nikolaevich Durnovo (04.11.1876, Moscow, Russia - 27.10.1937) - philologist-slavist. Academician (1928), Corresponding Member of the Russian Academy of Sciences (1924), Master of Russian Language and Literature (1916), Professor (1918).
One of the pioneers of linguistic and geographical study of East Slavic languages. Together with D.N. Ushakov and N.N. Sokolov created a map of Russian dialects (published in 1915 as “Experience of a dialectological map of the Russian language in Europe with an essay on Russian dialectology”), which presents the classification of Russian, Belarusian and Ukrainian dialects, substantiates the theoretical principles of the linguistic geography of the early 20th century The author of "Grammar Dictionary" (1924) - the first Russian dictionary of linguistic terms. He studied the history of the Russian language and its dialects.
Author of about 190 scientific papers, including 3 monographs.