In the title complex, [Cu(C(18)H(14)NO)(2)], the Cu(II) ion lies on a crystallographic inversion centre and is bonded to the O- and N-donor atoms of the two bidentate chelate 1-[(o-tol-yl)imino-meth-yl]-2-naphtho-late ligands in a trans arrangement. The distorted square-planar geometry about Cu(II) has normal dimensions, with Cu-O = 1.8881 (15) Å and Cu-N = 1.9804 (17) Å.