This study aimed to determine the cutoff point at Voice Handicap Index (VHI) as a diagnostic tool in the process of voice disorder assessment. It further surveyed a correlation between diagnosis made by speech specialist and a corresponding opinion reported by client on the existence/nonexistence of any voice disorder.A sample of 160 individuals who completed the VHI questionnaire were assigned to clinical and nonclinical groups. They were asked about the opinions of their voices on a Likert scale.A correlation was found between the specialists' diagnosis and clients' opinion on their own voices (r=0.882); however, this was reduced (r=0.717) when a mild voice disorder existed among the nonclinical group. The cutoff point, at which VHI sensitivity (for screening subjects with and without normal voices) reached its maximal value (92%) and its highest level of specificity (95%), was observed to be 14.5.Occasional incompatibility between specialists' diagnoses and that of clients' opinion about existence/nonexistence of voice disorders within the individuals should be considered significant. Also, a score of 14.5 can be accepted as the cutoff point at VHI (Persian version) in the voice disorder assessment process.