Bidonì is a village and comune, or municipality, located in the Province of Oristano within the autonomous island region of Sardinia, Italy. The settlement is situated approximately 100 kilometres (62 mi) north of Cagliari and about 40 kilometres (25 mi) northeast of Oristano.
The municipality has a small population consisting of 112 inhabitants. It serves as a rural administrative division within the Sardinian interior.