Sant Joan les Fonts (Catalan pronunciation: [ˈsaɲ ʒuˈan ləs ˈfɔns]) is a municipality of the comarca of Garrotxa, located in Girona, Catalonia, northern Spain.

[clarification needed] A recovery began in the area, with small population centers, that was hampered by civil war in the fifteenth century.

Monestir de Sant Joan les Fonts is a Romanesque building, declared a national monument.

The medieval bridge, built with volcanic stone, crosses the river Fluvià and links the core of the town with the existing church and the Castanyer neighborhood.

An area of archeological interest also known for the lava flow that formed part of the old lock known as "la Reformada".