Lake Chudzyavr (Russian: Чудзъявр) is a large freshwater lake on the Kola Peninsula in Murmansk Oblast, Russia. It has an area of 57.8 square kilometers (22.3 sq mi).^[1] The river Chudzyok (left tributary of the Voronya) flows from the lake.

The name of the lake is of Kildin Sami origin.^{[citation needed]}