At 173 K, the dication of the title compound, C24H28Cl2N4Si2+·2I3−·CHCl3, is located on a crystallographic fourfold rotation axis. The chloro ligands occupy axial positions and the four 4‐methylpyridine ligands lie in the equatorial plane. The almost linear I3− ion is located on a crystallographic mirror plane and displays two significantly different I—I bond lengths. Furthermore, chloroform molecules, which are disordered about a centre of inversion, fill the remaining gaps in the crystal structure.