Mavriky Klechkovsky (1865–1938) was a lawyer, teacher, music theorist, pianist, writer, and translator from English. He studied music theory with Sergei Taneyev.
Klechkovsky supported educator Konstantin Ventzel and promoted Ventzel’s theory of free education. He wrote memoirs of Leo Tolstoy and books on education and music theory. One of his final books on music theory was lost. Before the war, it was with a publisher, and David Oistrakh took an active part in arranging its publication.
Klechkovsky owned an estate in Klesovo, near Oryol. He may have established a school there in the 1910s modeled on Tolstoy’s school or Ventzel’s House of the Free Child. In 1918–1919, he organized and became the first head of the provincial central library. During the 1920s, he directed the Oryol Music School, then moved to Moscow and taught at the Alexander Scriabin Music College, also known as the Regional Music College. His students included B. M. Berlin and V. G. Sokolov.
He worked for the journal Free Education and compiled the Free Education Library series. He also translated adventure writing by Jack London, including Adventure and The Cruise of the Dazzler.