The name of the town refers to Saint-Guénolé, founder of the Landévennec abbey in Finistère. In the 5th century, King Gradlon gave him the gift of "Le Saint", this locality located south of the Black Mountains, bounded by Inam and the Moulin du Duc stream.
Subsequently, the territory passed into the hands of the Vicomtes de Gourin, then to those of the Lords of Faouët who settled there in 1343, after their castle was taken. They remained there until the 17th century.
In the village, you can see the town hall, whose facade and gable were built with stones from the Saint-Adrien de Bouthiry chapel, which fell into ruin at the start of the 20th century.
Pleasant hiking trails crisscrossing Le Saint allow you to discover, in part, its architectural heritage such as, for example, the pretty Saint-Samuel fountain.
The town is labeled "Village fleuri", classified as "1 flower".
