Bar-sur-Aube (French: [baʁ syʁ ob] ) is a French commune and a sub-prefecture in the Aube department in the Champagne-Ardenne region of France. Surrounded by hills and Champagne vineyards, the city is traversed by the river Aube, from which it derives its name. The inhabitants of the commune are known as Baralbins or Baralbines and Barsuraubois or Barsurauboises. The commune has been awarded three flowers by the National Council of Towns and Villages in Bloom in the Competition of cities and villages in Bloom.