Walker River, showing the West Walker and East Walker riverrs

The East Walker River is a tributary of the Walker River, approximately 75 mi (121 km) long, in eastern California and western Nevada in the United States. It drains part of the western side of the Sierra Nevada in the watershed of Walker Lake in the Great Basin.

It rises from snowmelt in the Sierras of eastern California north of Mono Lake and near the northeast boundary of Yosemite National Park. It flows north through the Bridgeport Valley, past Bridgeport, where it is impounded to form the Bridgeport Reservoir. It crosses into southern Lyon County, Nevada, passing through a canyon to emerge into the Mason Valley, a ranching region. It joins the West Walker River approximately 7 mi (13 km) south of Yerington to form the Walker River.