Demangevelle (French pronunciation: [dəmɑ̃ʒvɛl]) is a commune in the Haute-Saône department in the region of Bourgogne-Franche-Comté in eastern France.

The Côney forms part of the commune's north-eastern border, flows south-westward through the middle of the commune, and forms part of the commune's south-western border.

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