The Hollinwood Branch Canal was a canal near Hollinwood, in Oldham, England. It left the main line of the Ashton Canal at Fairfield Junction immediately above lock 18. It was just over 4.5 miles (7.2 km) long and went through Droylsden and Waterhouses to terminate at Hollinwood Basin (Hollinwood Top Wharf). It rose through four locks at Waterhouses (19–22) and another four at Hollinwood (23–26). Immediately above lock 22 at Waterhouses was Fairbottom Junction where the Fairbottom Branch Canal started. Beyond Hollinwood Basin there was a lock free private branch, known as the Werneth Branch Canal, to Old Lane Colliery, which opened in 1797. It is a biological Site of Special Scientific Interest and a Local Nature Reserve.