Macastre is a municipality in the comarca of Hoya de Buñol, within the Valencian Community of Spain. It is located in the eastern part of the Iberian Peninsula, in the province of Valencia.
The town forms part of the Hoya de Buñol district, a comarca in the interior of the province of Valencia. As a municipality, Macastre has its own local administrative status within the Valencian Community's system of local government.
Macastre is one of the smaller settlements within its comarca, sharing the Hoya de Buñol with other municipalities in the surrounding area. The Valencian Community is an autonomous community in eastern Spain, and its municipalities, including Macastre, are grouped into comarcas for administrative and regional purposes.