Peebles Hydro is an early 20th century country house hotel and spa resort in Peebles, in the Scottish Borders at the south of Scotland. It is one of two hydropathic hotels left in Scotland, the other being Crieff Hydro in Perthshire.The hotel opened in 1881, but burnt down and was rebuilt in 1907. It served as a hospital for injured service personnel during the First World War before reverting to hotel use. Peebles Hydro is a category B listed building, and is still operated as a hotel.