In the title compound, [AgCl(C(24)H(24)N(2))], the terminal phenyl and tetra-methyl-benzene rings [which form a dihedral angle of 87.92 (14)°] make dihedral angles of 59.59 (11) and 83.19 (12)° with respect to the central benzimidazole ring system. The Ag-C and Ag-Cl single-bond lengths are 2.087 (3) and 2.3267 (9) Å. The C-Ag-Cl bond angle is 172.84 (7)°. C-H⋯π inter-actions contribute to the stabilization of the crystal structure. A very weak π-π stacking inter-action between adjacent tetra-methyl-benzene rings [centroid-centroid distance = 4.0610 (18) Å] is also observed.