In the title dinuclear complex, [Dy(2)(C(8)H(7)O(3))(6)(C(10)H(8)N(2))(2)(H(2)O)(2)]·H(2)O, the Dy(III) atoms are coordinated by eight O atoms from four 2-(4-hy-droxy-phen-yl)acetate (HPAA) ligands and a water mol-ecule, and one N atom from a 4,4'-bipyridine (bipy) ligand in a distorted tricapped trigonal prismatic geometry. Whereas four HPAA ligands coordinate to just two Dy(III) atoms, the remaining two ligands bridge the two Dy(III) atoms. In the crystal, O-H⋯O and O-H⋯N hydrogen bonds link the mol-ecules into a three-dimensional network.