Objective: To evaluate the prevalence and pattern of lower impacted third molar with the help of orthopantomogram (OPG). Methodology: A total of 230 pre-operative radiographs of the patients who reported with impacted lower third molar to the Santosh Dental College and Hospital was collected from the year 2020 – 2022. Out of 230 OPGs, 200 OPGs with presence of entire tooth structure and grossly decayed tooth were included in the study. Teeth with pre-existing pathology, incomplete root formation or root stumps are excluded from the study. The variables on OPG were analyzed and tabulated on the basis of Winter’s classification, and Pell and Gregory classification for all the included 200 OPGs. Result: Out of the included 200 OPGs, 104 were of male patients (52%) and 96 were of female patients (48%). The most common pattern of angulation of the lower third molar recorded was mesioangular (40.7%) followed by vertical (34.7%), horizontal (12%) and distoangular (1.5%) Conclusion: Mesioangular impactions are the most prevalent one in the Ghaziabad region based on the results of our study while distoangular impaction being the least prevalent.