In the crystal structure of the title compound, {[Co(NCS)2(C6H4N2)4]·2C4H8O2}, the CoII cations are octahedrally coordinated by two terminal N-bonded thiocyanate anions and four N-bonded 3-cyanopyridine ligands. The asymmetric unit consists of one CoII cation, which is located on a special position with site symmetry 2/m, one thiocyanate anion and one dioxane molecule, located on a crystallographic mirror plane, as well as one 3-cyanopyridine ligand in a general position. The crystal structure consists of discrete complexes of [Co(NCS)2(3-cyanopyridine)4], as well as two non-coordinating 1,4-dioxane solvent molecules which are disordered due to symmetry.