Dichlororuthenium tricarbonyl dimer is an organoruthenium compound with the formula [RuCl2(CO)3]2.

The complex is a common starting material in ruthenium chemistry.

[1] Dichlororuthenium tricarbonyl dimer arises by the carbonylation of a hot solution of ruthenium trichloride in methoxyethanol.

[2] The complex exists in equilibrium with the polymer: It reacts with potassium hydroxide in alcohol to give triruthenium dodecacarbonyl.

Dichlororuthenium tricarbonyl dimer reacts with glycine to give tricarbonylchloroglycinatoruthenium(II).