In the title complex, [NiCl(2)(C(27)H(27)NP(2))], the Ni(2+) ion is coordinated by two chloride ions and two P atoms of the bidentate N,N-bis-(diphenyl-phosphan-yl)propyl ligand to generate a strongly distorted cis-NiCl(2)P(2) square-planar geometry for the metal ion. A NiP(2)N rhombus occurs within the chelating ligand.