Derkachov, Illia [also Derkach; Деркачов (Деркач), Ілля; Derkačov (Derkač), Illja], b 1 August 1834 in Ust-Ozivske (now Henichesk), Tavriia gubernia, d 8 November 1916 in Moscow. Pedagogue and children's writer. Derkachov taught in Ukraine in the 1860s and 1870s. He wrote manuals and books for children, including Ukraïns'ka hramatka (Ukrainian Grammar, 1861) for Ukrainian schools.

[This article was updated in 2018.]