Acinacodus is an extinct genus of amphidontid "eutriconodont" which existed in Shestakovo 1 locality in Western Siberia, Russia during the early Cretaceous period.[1] It was described by A. V. Lopatin, E. N. Maschenko and A. O. Averianov in 2010, and the type species is Acinacodus tagaricus.[1]