The River Balvaig (Scottish Gaelic: "Abhainn Balvaig") is a short river approximately {{convert|8|km|mi|abbr=on}} long draining from the head of Loch Voil near Balquhidder in Scotland and then passing southwards through the village of Strathyre before flowing into the northern end of Loch Lubnaig. {{coord|56.3387|-4.3298|dim:5000_region:GB|display=title}}{{DEFAULTSORT:Balvag}}{{Scotland-river-stub}} 2 : Rivers of Stirling (council area)|Forth basin |