Bonarcado is a town and comune located in the Province of Oristano within the autonomous island region of Sardinia, Italy. Geographically, it is situated approximately 110 kilometres (68 mi) northwest of Cagliari and about 25 kilometres (16 mi) north of Oristano.
The municipality has a population of 1,521 inhabitants. It serves as a local administrative center within the Sardinian interior.