Noise and acoustic conditions are associated with voice disorders among teachers, which can cause damage to the vocal folds and lead to a range of voice symptoms such as hoarseness and vocal fatigue.Aim: To identify the effect of classrooms' noise and acoustic conditions on occupational voice use perception among college professors.Method: A cross-sectional study was conducted with the participation of 221 teachers.Participants filled out an online survey.Generalized linear models were used to assess the association between the independent and dependent variables.The associations were expressed by the beta regression coefficient and the standard error.Results: Teachers who reported a higher perception of noise inside the classroom were less likely of reporting using loud voices during teaching and more likely of using a microphone during teaching.Teachers who reported a higher perception of bad acoustics inside the classroom were less likely of reporting using vocal rest voice and projected voice during teaching.Conclusion: Noise and poor acoustics can negatively impact teachers' occupational voice use, and therefore, increase the likelihood of voice disorders.