The title compound, [Co(C4H13N3)2][InCl6], was synthesized under hydrothermal conditions. In the cation, the Co—N bond lengths lie in the range 1.967 (2)–1.9684 (15) Å. In the anion, the InIII atom is coordinated by six Cl atoms resulting in a slightly distorted octahedral geometry. Both metal atoms are located on special positions of site symmetry 2/m. Furthermore, one Cl atom and one N atom are located on a mirror plane. N—H⋯Cl hydrogen bonds between cations and anions consolidate the crystal packing.