Crieff Hydro is a hotel in Crieff, Perthshire, Scotland. The purpose-built hotel opened in 1868 as the Crieff Hydropathic Establishment, and is locally known as the Hydro. It was founded in 1868 by Dr Thomas Henry Meikle, who had received treatment at a centre in Gräfenberg, Austria, where Vincenz Priessnitz had built such an establishment. Preissnitz based his pharmacopeia on water, exercise, fresh mountain air, water treatments in the brooks and simple country food.