Loch Airigh na Beinne is a mountain lochan (small loch) in Assynt, Scotland, roughly 2km southwest of Unapool.
The lochan sits on the northeast slopes of Assynt's iconic Quinag, resting on a bed of Lewisian gneiss. Its name means "Loch of the Mountain Shieling" in Scottish Gaelic.
A 2020 survey of the loch found several aquatics "typically found in such acid waters", including the white water-lily, water lobelia, bulrush, and floating spike-rush. Surveyors also found evidence of caddisfly and northern eggar populations.