Tredozio is a comune (municipality) with 1,212 inhabitants (December 31, 2015) in the province of Forlì-Cesena in the Emilia-Romagna. The community is located about 28.5 kilometers southwest of Forli and 40 kilometers west-southwest of Cesena in the Valle del Tramazzo and adjacent to the metropolitan city of Florence (Tuscany). Tredozio is in the Parco Nazionale delle Foreste Casentinesi, Monte Falterona and Campigna.