Rhodium(III) sulfide is the inorganic compound with the formula Rh2S3.

It is an insoluble black solid, prepared by the heating a mixture of elemental rhodium and sulfur.

Crystals can be grown by chemical vapor transport using bromine as the transporting agent.

The structure consists of octahedral and tetrahedral Rh and S centers, respectively.

No close Rh-Rh contacts are observed.