Beniatjar is a municipality in the comarca of Vall d'Albaida, in the Valencian Community of Spain. It is located in the eastern part of the Iberian Peninsula, within the province of Valencia.
The town belongs to the Vall d'Albaida district, an inland comarca of the Valencian Community. As a municipality, Beniatjar forms part of the local administrative structure of the region, with its own municipal government.