Noise measurements and a questionnaire survey were carried out in air-conditioned landscaped offices in the present study in an attempt to find out what existing noise index gives the best correlation with the auditory sensation feeling of office workers. Results from statistical analyses show that theEquivalent Sound Pressure Levelis the best among the 14 commonly used noise indices for this purpose. It is also found that the less commonly usedZwicker’s loudness levelperforms better than the commonly adoptedNoise Criterion curvesandNoise Rating curvesin predicting auditory sensation of office workers in air-conditioned landscaped offices. The performance of the 14 noise indices in predicting auditory comfort are compared.