In the title compound, C(15)H(15)NO, the almost planar 2,3-dimethyl-aniline unit and the salicyl-aldehyde group (r.m.s. deviations of 0.0156 and 0.0109 Å, respectively) are oriented at a dihedral angle of 43.69 (9)° with respect to each other. An S(6) ring motif is formed due to intra-molecular O-H⋯N hydrogen bonding. In the crystal, C-H⋯π inter-actions occur between the 2,3-dimethyl-aniline unit and the salicyl-aldehyde group, where the CH is from the o-methyl group.