The asymmetric unit of the title compound, C(10)H(10)N(2), contains one half-mol-ecule with the two shared C atoms lying on a twofold rotation axis. The 1,8-naphthyridine is almost planar with a dihedral angle of 0.42 (3)° between the fused pyridine rings. In the crystal, mol-ecules are linked into infinite chains along the c axis by inter-molecular C-H⋯N hydrogen bonds, generating R(2) (2)(8) ring motifs. In addition, the crystal structure is further stabilized by C-H⋯π inter-actions.