The title complex, [Mn(C(9)H(7)N(4)O(3)S)Cl(C(12)H(8)N(2))(CH(4)O)(H(2)O)], contains an Mn(II) ion six-coordinated by one O atom from the 2-[1-(4-hydroxy-phen-yl)-1H-tetra-zol-5-ylsulfan-yl]-acetate ligand, two N atoms from a chelating 1,10-phenanthroline ligand, one O atom from a methanol mol-ecule, one Cl atom and one water mol-ecule in a distorted octa-hedral coordination geometry. The existence of O-H⋯Cl, O-H⋯N and O-H⋯O hydrogen bonds further produces a two-dimensional structure.