Dmytro Ivanovych Yavornytsky (Ukrainian: Дмитро́ Іва́нович Яворни́цький), or Dmitry Ivanovich Yavornitsky (also known as Dmitry Evarnitsky, Russian: Дмитрий Иванович Яворницкий; November 6, 1855, Kharkov Governorate, Russian Empire – August 5, 1940, Dnipropetrovsk, Soviet Union) was a Russian Imperial and Ukrainian Soviet academician, historian, archeologist, ethnographer, folklorist, and lexicographer. Yavornytsky was a member of (from 1885), of All-Russian Archaeological Society (from 1886) and an academician of Ukrainian Academy of Sciences (from 1929).