The Plotnikova (Russian: Плотникова)[1] is a river in the western Kamchatka Peninsula, Russia, a tributary of the Bolshaya.

The Plotnikova flows through the Yelizovsky and Ust-Bolsheretsky districts of the Kamchatka Territory.

It originates in Lake Nachikinsky (Russian: озеро Начикинское) at an altitude of 348 metres (1,142 ft), and flows into the Bolshaya 58 kilometres (36 mi) from the river's mouth on west coast of Kamchatka on the Sea of Okhotsk.

[2] The part of the Bolshaya upstream from its confluence with the Plotnikova is named Bystraya.

[4] The river is used by locals and tourists for fishing from rafts or boats.