The title compound, [Ag(C 7H 2Br 3O 2)(C 18H 15P) 3], a silver(I) derivative of 3,5,7-tribromotropolone, has three triphenylphosphine ligands coordinated to the silver centre, whereas the 3,5,7-tribromotropolonate anion coordinates as a bidentate ligand. The compound is an example of a five-coordinate silver complex containing a bidentate ligand.