Vaire-le-Petit is a former commune in the Doubs department in the Franche-Comté region in eastern France. On 1 June 2016, it was merged into the new commune of Vaire.

The Doubs is a 453-kilometre river in far eastern France which strays into western Switzerland. It is a left-bank tributary of the Saône. It rises near Mouthe in the western Jura mountains, at 946 met