River Creed) Abhainn Arnoil Abhainn Bharabhais Orkney Mainland Burn of Ayreland Mill Dam Burn, Shapinsay, Orkney Islands Shetland Mainland Burn of Weisdale Burn of Sandwater/Burn of Pettawater Listing by length Various measurements are provided for the lengths of Scottish rivers. The table below distinguishes between the river alone and the river plus tidal waters, which many sources use. In all cases the distance is for the longest distance through the catchment area not just the distance of that portion of it which the named river covers excluding upstream tributaries. Listing by area of catchment The major rivers of Scotland, in order of catchment, are: River Tay c. River Tweed River Spey Note: Imperial figures from quoted source; and metric figures less certain. Shared names A number of Scottish rivers have identical or very similar names which can be a source of confusion. These are some of the main ones. The symbol '>' is used here to signify 'tributary of': Ale Ale Water ( > Eye Water, Eyemouth); Ale Water ( > Tweed) Allan Allan Water ( > Forth); Allan Water ( > Teviot > Tweed) Almond River Almond (Lothian); River Almond ( > Tay) Avon River Avon (Falkirk); River Avon ( > Spey); Avon Water ( > Clyde) Ba River Bà (Mull); River Bà (Rannoch Moor) Bannock Burn Bannock Burn ( > River Helmsdale); Bannock Burn ( > Forth) Barr Barr River (Morvern); Barr River ( > River Laggan, Islay); Barr Water (Kintyre) Black Burn Black Burn – commonly occurring including Lossie, Tweed, Water of Luce Black Water Black Water – very frequent Calder River Calder ( > Spey, Highand); North Calder Water ( > Clyde); South Calder Water ( > Clyde) Carron River Carron (Forth); River Carron (Sutherland); River Carron (Wester Ross); Carron Water (Aberdeenshire); Carron Water ( > Nith) Conon River Conon (Skye); River Conon ( > Cromarty Firth) Dee River Dee, Aberdeenshire (Aberdeen); River Dee (Galloway) Dibidal, Dibidil Dibidal River (Skye); Dibidil River (Rùm) Dorback Dorback Burn ( > Nethy > Spey); Dorback Burn ( > Findhorn) Douglas Douglas Water ( > Clyde); Douglas Water (Loch Lomond); Douglas Water (Loch Fyne) Eden Eden Water (Tweed); River Eden (Fife) Elrick Elrick Burn (Don); Elrick Burn (Findhorn) Enrick, Endrick River Endrick (Loch Lomond); River Enrick (Loch Ness) Esk, North Esk, South Esk River Esk, Dumfries and Galloway ('Border Esk'), River Esk, Lothian (Lothian); River North Esk; River North Esk