Rhodium(III) nitrate is an inorganic compound, a salt of rhodium and nitric acid with the formula Rh(NO<sub>3</sub>)<sub>3</sub>. This anhydrous complex has been the subject of theoretical analysis but has not been isolated. However, a dihydrate and an aqueous solution are known with similar stoichiometry; they contain various hexacoordinated rhodium(III) aqua and nitrate complexes. A number of other rhodium nitrates have been characterized by X-ray crystallography: Rb<sub>4</sub>[trans-[Rh(H<sub>2</sub>O)<sub>2</sub>(NO<sub>3</sub>)<sub>4</sub>][Rh(NO<sub>3</sub>)<sub>6</sub>] and Cs<sub>2</sub>[-[Rh(NO<sub>3</sub>)<sub>5</sub>]. Rhodium nitrates are of interest because nuclear wastes, which contain rhodium, are recycled by dissolution in nitric acid.
Rhodium(III) nitrate is used as a precursor to synthesize rhodium.