Loch Fyne (Scottish Gaelic: Loch Fìne, pronounced [lˠ̪ɔx fiːnə], meaning Loch of the Vine or Wine, is a sea loch on the west coast of Argyll and Bute, Scotland. It extends 65 kilometres (40 mi) inland from the Sound of Bute, making it the longest of the sea lochs. It is connected to the Sound of Jura by the Crinan Canal.