Isobaric vapor-liquid equilibrium data for the binary system cyclohexanone+N-methylacetamide were measured at 6.66, 13.33, and 26.66 kPa using a recirculating still. The experimental data obtained in this study are thermodynamically consistent according to the point-to-point consistency test and deviation from ideal behavior is small in all cases. The data were correlated with five liquid-phase activity coefficient models (Margules, Van Laar, Wilson, NRTL, and UNIQUAC)