Background: Teenagers and young adults (between 15 to 25 years of age) are more prone to addiction of tobacco & alcohol due to peer pressure and psychological triggering factors. This study was done to evaluate the pattern of Tobacco and Alcohol consumption among teenagers & young adult patients. Methods: A descriptive cross sectional survey was conducted between 15th Aug 2019 to September 15th 2019 in the Department of Oral Medicine and Radiology, Government dental college, Shimla amongst the teenagers & young adult population using self designed, close ended 20 questionnaires. Results: Out of total 318 patients in age group of 15-25 years present to the OPD, 250 people agreed to participate in the study. Among these 250 patients, maximum 131(52.4%) in the age group of 21-15 years, 130(52%) were males, 154(61.6%) were educated up to secondary level and 169(67.6%) were students. Among the total participants, 151 presented with the complaint of pain in tooth/oral lesion, 22 with trauma/ fracture, 1 with oro mucosal lesion and 76 with other complaints. Among the total participants, 56(22.4%) were smokers. Among these 56 smokers, 27(48.22%) were started smoking for <2 years, 39(69.66%) were smoking 8-10 times a day, 35(62.5%) initiating smoking due to the influence of their friends, 34(60.72%) were smoking cigrratte and 34(60.72%) tried to quit and among these 34 participants, loss of health was the reason for quit among 26(76.47%) participants. Among the total participants, 17(6.8%) were Non-smoking Tobacco users. Among these, 10(58.82%) were taking Jarda/Khaini, all 17 (100%) tried to quit and loss of health was the reason for quit among all 17 (100%) participants. Among the total participants, 71(28.4%) were alcoholic. Among these, 47(62.20%) were taking alcohol daily, 35(49.29%) started taking alcohol for < 2 years, 06 (8.45%) tried to quit and among these 6 participants, loss of health was the reason for quit among all 6(100%) participants. Conclusion: