Lev Nikolaevich Zadov (Zinkovsky), (Russian: Лев Николаевич ("Лёвка") Задов (Зиньковский)) April 11, 1893, Veselaya - September 25, 1938, Kiev was chief of military intelligence of the Revolutionary Insurrectionary Army of Ukraine, and later an OGPU operative. Born Lev Zadov, he changed his last name to Zinkovsky.