Blyth Bridge is a small hamlet in the Scottish Borders area of Scotland, near to West Linton.
It is located in a bend on the A701 which goes from Moffat to Edinburgh, close to the junction with the East-West road the A72 which goes to Peebles.
Places nearby include the Lyne Water, Carlops, Romannobridge, and the Deepsyke Forest.
There is an aqueduct carrying a large water main which supplies Edinburgh and passes over Tarth Water.
There are a number of iron age forts on the hills nearby, and the historic Drochil Castle is a short distance away.