The Vuosnayoki (Russian: Вуоснайоки, Finnish: Vuosnajoki) is a river in the south of the Kola Peninsula in Murmansk Oblast, Russia. It is 66 kilometres (41 mi) long, and has a drainage basin of 661 square kilometres (255 sq mi). The river flows into the Lake Nivayarvi, which is drained by the Kutsayoki.