The Black Devon is a river in Scotland. It rises in the Cleish Hills, specifically the area known as Outh Muir, 1.5 kilometres (0.93 mi) north of Knockhill Racing Circuit, around 9 kilometres (5.6 mi) north-west of Dunfermline, Fife, with the gathering of three small streams in branch formation. The river flows westwards through Balgonar, north of Saline, and then merges with the Saline Burn. The Black Devon flows into Clackmannanshire, through the hamlet of Forestmill and past the town of Clackmannan. The Black Devon enters the River Forth south of Alloa, 1 kilometre (0.62 mi) north of Dunmore Pier.
It is a narrow and shallow river that holds wild brown trout, and also sees sea trout in winter months that come into the Firth of Forth, which is tidal as far as Stirling. The Rivers and Fisheries Trusts of Scotland manage the River Forth and its tributary rivers, which besides the Black Devon include the River Devon, River Teith, and River Allan.