Saint-Ursanne is an old town and a former municipality of the district of Porrentruy in the canton of Jura, Switzerland which has preserved much of its medieval character.

The river Doubs makes a loop near Saint-Ursanne before flowing into France.

The town is famous for the medieval festival which it organizes each summer,[2] and for the annual St-Ursanne–Les Rangiers International Hill Climb in August.

[3][4] Its name refers to Saint Ursicinus, a seventh-century monk who built a monastery here.

This town received an award as being one of the "best tourism villages" worldwide by UNWTO.