Cassagnes is the name or part of the name of the following communes in France:
Cassagnes, Lot, in the Lot department Cassagnes, Pyrénées-Orientales, in the Pyrénées-Orientales department Cassagnes-Bégonhès, in the Aveyron department
People with the surname André Cassagnes (1926–2013), French inventor Louis Victorin Cassagne (1774–1841), French general of the Napoleonic Wars