In the title molecule, C19H23NO, the piperidine ring adopts a chair conformation. The two phenyl rings, and the hydroxy and ethyl groups attached to the piperidine ring, have equatorial orientations. The dihedral angle between the two phenyl rings is 54.5 (1)°. The hydroxy and amino H atoms are each disordered over two positions, with approximately equal site occupancies. Intermolecular O—H...O, O—H...N and N—H...O hydrogen bonds contribute to the stability of the crystal packing.