Stonebyres Falls, also known as Stonebyres Linn, is a waterfall on the River Clyde in South Lanarkshire, Scotland, situated on the former Stonebyres estate near the site of Stonebyres Castle.

It is considered the fourth of the Falls of Clyde, with the other three lying further upstream within the Scottish Wildlife Trust's Falls of Clyde Nature Reserve.

The falls consist of two distinct rock steps: an upper drop of around 3 metres and a dramatic lower drop of 15–18 metres.

The rocky streambed displays classic high-energy river features such as potholes and plucked blocks, evidence of the powerful erosion processes at work as the Clyde cuts through resistant bedrock.

The falls are best viewed from the Clyde Walkway in winter, when leafless trees open up clear sightlines into the gorge.