Chernevog is a fantasy novel by American science fiction and fantasy author C. J. Cherryh. It was first published in September 1990 in the United States in a hardcover edition by Ballantine Books under its Del Rey Books imprint. "Chernevog" is book two of Cherryh's three-book "Russian Stories" trilogy set in medieval Russia in forests along the Dnieper river near Kiev in modern-day Ukraine. The novel draws on Slavic folklore, the title of the novel being a variant name of the "black god" Chernobog, and concerns the fate of a girl who has drowned and become a rusalka. It is also an exploration of magic and the development of a young wizard.