Haute-Saône (French: [ot soːn] ⓘ; Frainc-Comtou: Hâte-Saône; English: Upper Saône) is a department in the Bourgogne-Franche-Comté region of northeastern France.

The department was created in the early years of the French Revolution through the application of a law dated 22 December 1789, from part of the former province of Franche-Comté.

The department was also marked by the Franco-Prussian War with the battles of Héricourt, and Villersexel but also the proximity of the Siege of Belfort.

In 2006 employment by economic sector was reported as follows:[4] In common with many rural departments in France, Haute-Saône has experienced a savage reduction in population, from nearly 350,000 in the middle of the nineteenth century to barely 200,000 on the eve of the Second World War, as people migrated to newly industrialising population centres, often outside Metropolitan France.

During the second half of the twentieth century the mass mobility conferred by the surge in automobile ownership permitted some recovery of the population figure to approximately 234,000 in 2004.