In the title compound, [PdBr(C(27)H(23)N(3)OPS)]·C(3)H(6)O, the coordination geometry about the Pd(II) atom is distorted square-planar, arising from the attached Br, S, P and N atoms (N and Br are trans), the maximum deviation from the plane being 0.2053 (4) Å for the N atom. The three benzene rings attached to the P atom make dihedral angles of 69.78 (7), 87.05 (7) and 77.50 (7)° with each other. An intra-molecular C-H⋯N hydrogen bond forms an S(6) ring motif. In the crystal, the complex mol-ecules form infinite chains along the a-axis direction through C-H⋯Br inter-actions, and a C-H⋯O inter-action links the main mol-ecule with the acetone solvent mol-ecule.