Tungsten(II) chloride is the inorganic compound with the formula W6Cl12.

It is a polymeric cluster compound.

The material dissolves in concentrated hydrochloric acid, forming (H3O)2[W6Cl14](H2O)x.

[1] The structural chemistry resembles that observed for molybdenum(II) chloride.

Tungsten(II) chloride is prepared by reduction of the hexachloride.