Objective: Barodontalgia is dental pain provoked by atmospheric pressure changes. The incidence is high in the Arabian Gulf region (34% in divers and pilots). The aim of the study was to measure students' knowledge about barodontalgia. Methods: 1110 questionnaires consisting of knowledge of barodontalgia (definition, diagnosis, treatment, and prevention) were distributed among dental students in three dental schools in Saudi Arabia. Results: The response rate was 75%. Only 22.2% were aware of the correct definition of barodontalgia. Most students did not know the correct answers to questions about Barodontalgia (57-70%). 80.4% of the students indicated that they did not have any formal education in relation to barodontalgia. 3.2% of students were exposed to a case of barodontalgia during their clinical studies. Most of the students (82%) were interested to know more about barodontalgia. Conclusion: There is low awareness of Barodontalgia among students. Dental curricula should include knowledge of this phenomenon.