Tungsten(VI) oxytetrachloride is the inorganic compound with the formula WOCl4.

This diamagnetic solid is used to prepare other complexes of tungsten.

The red crystalline compound is soluble in nonpolar solvents but it reacts with alcohols and water and forms adducts with Lewis bases.

[citation needed] The solid consists of weakly associated square pyramidal monomers.

It is a precursor to catalysts used for polymerization of alkynes.