In the title compound, [Mn(C(9)H(6)N(3)O(2))(2)(H(2)O)(4)]·10H(2)O, the Mn(II) ion is coordinated by two N atoms from two 4-(4H-1,2,4-triazol-4-yl)benzoate ligands and four water mol-ecules in a distorted octa-hedral geometry. The Mn(II) ion and two coordinated water mol-ecules lie on a twofold rotation axis. The water mol-ecules are involved in O-H⋯N and O-H⋯O hydrogen bonds with the triazole N atoms and carboxyl-ate O atoms, yielding a three-dimensional supra-molecular network. π-π inter-actions between the benzene rings [centroid-centroid distance = 3.836 (9) Å] are observed.