Tungsten dichloride dioxide, or Tungstyl chloride is the chemical compound with the formula WO2Cl2.

[2] An alternative route highlights the oxophilicity of tungsten:[3] This reaction, like the preceding one, proceeds via the intermediacy of WOCl4.

[4] Solid tungsten dichloride dioxide is a polymer consisting of distorted octahedral W centres.

[6] WO2Cl2 is a Lewis acid, forming soluble adducts of the type WO2Cl2L2, where L is a donor ligand such as bipyridine and dimethoxyethane.

Such complexes often cannot be prepared by depolymerization of the inorganic solid, but are generated in situ from WOCl4.