The asymmetric unit of the title compound, [Zn(C18H12N5)2(H2O)2], consists a Zn(II) ion, located on an inversion center, a deprotonated 5-pyridin-2-yl-3-[4-(pyridin-4-yl)phen-yl]-1H-1,2,4-triazol-1-ido ligand and a water mol-ecule. The whole mol-ecule is generated by inversion symmetry. The Zn(II) ion has a distorted octa-hedral coordination geometry, defined by four N atoms from the two deprotonated organic ligands and two water O atoms. In the crystal, O-H⋯N hydrogen bonds link the mol-ecules, forming a three-dimensional network.