In the title complex, [Co(NCS)(2)(C(6)H(12)N(4))(CH(4)O)(2)(H(2)O)], the six-coordinated Co atom has a slightly distorted octa-hedral geometry. The molecules are linked by intermolecular O-H⋯S and O-H⋯N hydrogen bonds, forming a three- dimensional crystal structure. Intramolecular C-H⋯N and C-H⋯O hydrogen bonds are also present.