Saint-Offenge-Dessous (, "Lower Saint-Offenge"; Savoyard: Sant-Ofinzho-dzo) is a former commune in the Savoie department in the Rhône-Alpes region in south-eastern France. On 1 January 2015, Saint-Offenge-Dessous and Saint-Offenge-Dessus merged becoming one commune called Saint-Offenge.