The River Orchy () is a river that passes through the village of Dalmally, Argyll in the West Highlands of Scotland. It rises in the Black Mount Forest, and flows southerly, passing through Loch Tulla and Glen Orchy before reaching Loch Awe. The hills of Beinn Mhic-Mhonaidh, Beinn Udlaidh and Beinn Bhreac-liath are to the north and south; there are falls and islands within the river. Reachable by the A82 road, tourists partake in kayaking, whitewater rafting, and fishing. Recent gold mining exploration has occurred in one of the river's glens just outside the Loch Lomond and The Trossachs National Park.