ABSTRACT: In the title mononuclear nickel(II) complex, [Ni(C(12)H(17)N(2)O(2))(NCS)], the metal atom is four-coordinated in a tetra-hedrally distorted square-planar geometry by the phenolate O atom, the imine N atom and the amine N atom of the Schiff base ligand and by the N atom of a thio-cyanate ligand. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers through inter-molecular N-H⋯O hydrogen bonds. These dimers are further connected by inter-molecular C-H⋯S hydrogen bonds, forming chains running parallel to [101].