Dirrington Great Law is a hill in the Scottish Borders area of Scotland, in the former county of Berwickshire. The summit is around 2.5 kilometres (1.6 mi) south of Longformacus and 9 kilometres (5.6 mi) west of Duns. It is an isolated hill to the south of the Lammermuir Plateau. Dirrington Little Law (360 metres (1,180 ft)) is located 2 kilometres (1.2 mi) to the south-west.