Yakov Karlovich Grot (Russian: Я́ков Ка́рлович Грот) (December 27 [O.S. December 15] 1812 – June 5 [O.S. May 24] 1893) was a nineteenth-century Russian philologist of German extraction who worked at the University of Helsinki.

Grot was a graduate of the Tsarskoye Selo Lyceum. In his lifetime, he gained fame for his translations of German and Scandinavian poetry, his work on the theory of Russian orthography, lexicography, and grammar, and his approach to literary editing and criticism, exemplified in a full edition of the works of Derzhavin (1864–1883). His Russkoye Pravopisaniye (1878, 1885) (Русское правописание, Russian orthography) became the standard textbook of Russian spelling and punctuation until superseded by the decrees of 1917–1918, although his definition of the theoretical foundations remains little changed to this day. Shortly before his death, he assumed the com…Read more on Wikipedia