The Penzhina (Russian: Пенжина; Koryak: Мыгыкивэем) is a river in Kamchatka Krai, Russia. It is 713 kilometres (443 mi) long, and has a drainage basin of 73,500 square kilometres (28,400 sq mi). The name "Penzhina" originated the Chukchi word "Pennyn", meaning "place of attack". In Koryak it is known as "Wegykiveem" (Мыгыкивэем), meaning "stormy river".
