Bonnington Linn is one of four waterfalls collectively known as the Falls of Clyde, situated on the River Clyde near New Lanark in South Lanarkshire, Scotland.

Standing approximately 9 metres (30 feet) high, it is the uppermost of the three falls — alongside Corra Linn and Dundaff Linn — that lie within the Falls of Clyde Nature Reserve, managed by the Scottish Wildlife Trust.

The fall plays a practical as well as scenic role: Bonnington Hydro Electric Power Station, completed in 1927 and considered the oldest such scheme in the United Kingdom, draws its water intake from Bonnington Linn.

As a result, the waterfall typically runs at reduced flow, though it can be seen at full dramatic force during periods when the power station undergoes maintenance.

Visitors describe the falls spreading wide across the river channel, with small wooded islands dividing the cataracts. The site is accessible via the Clyde Walkway, which threads through the gorge woodland connecting the Falls of Clyde reserve.