This study aims to summarize the current state of knowledge and awareness regarding OSA among Orthodontic practitioners and Orthodontic post graduate students. Method: A self-designated questionnaire which was specifically made for this study, comprising of total 20 multiple choice type questions was circulated with online networking medium to orthodontic practitioners and orthodontic post graduate students. Statistical Analysis: The data was analysed with IBM SPSS 25 for windows statistical software. Statistical analysis was analysed using a Chi Square test/Fisher’s Exact test and for quantitative data. For all statistical analyses, probability levels of P < 0.05 was considered statistically significant. Results: The total responses were 100 for this study. 86% orthodontic practitioners come across OSA patient occasionally. 98% orthodontic practitioners and 88% orthodontic post graduate students are familiar with Epworth Sleepiness scale. Conclusion: The study concludes that the orthodontic practitioners are relatively more aware comparatively to the orthodontic post graduates included in this survey about OSA and is statistically significant. There was no statistical significance in comparison with the other knowledge factors.