Andornay () is a commune in the Haute-Saône department in the region of Bourgogne-Franche-Comté in eastern France.
Andornay is located in the north-east of the Bourgogne-Franche-Comté region, in the Haute-Saône département, not far from the Territoire de Belfort and the Doubs.
The small village of Andornay covers just 148 hectares, only one of which is forested.