Catadau is a municipality in the comarca of Ribera Alta, within the Valencian Community of Spain. It is located in the eastern part of the country, in the province of Valencia.
The town forms part of the Ribera Alta district, an inland comarca of the Valencian Community whose name refers to its position along the lower course of the Júcar river. Catadau is one of the municipalities that make up this comarca.
As a Valencian municipality, Catadau sits within a region where Valencian and Spanish are both in use. The surrounding Ribera Alta area is known for its agricultural landscape, though the available source material does not provide further details specific to Catadau itself.