Cinigiano is a comune (municipality) in the Province of Grosseto in the Italian region Tuscany, located about south of Florence and about northeast of Grosseto.
Cinigiano borders the following municipalities: Arcidosso, Campagnatico, Castel del Piano, Civitella Paganico, Montalcino.
The municipality is formed by the municipal seat of Cinigiano and the villages (frazioni) of Borgo Santa Rita, Castiglioncello Bandini, Monticello Amiata, Poggi del Sasso, Porrona and Sasso d'Ombrone.