Aim: The present study was conducted to evaluate the prevalence and severity of dental attrition in different age groups in both the gender among the population of Davangere district. Need for the study: Early diagnosis, treatment and preventive care of attrition has become an essential and important part of daily practice. Hence, the present study was carried out to evaluate the prevalence of dental attrition and its severity in different age groups in both the genders. Materials and methodology: The present study was conducted randomly among the dentulous or partially edentulous individuals seeking dental treatment for various needs in College of Dental Sciences, Davangere, Karnataka. A total of 570 subjects were divided into three groups according to different age i.e., young (18–34 years), middle (35–54 years) and old (55 years and above). Questionnaire and clinical examination was performed personally for each subject. Clinical examination involved the evaluation of individual tooth for attrition and scoring was done using attrition index modified by tooth wear index of Smith and Knight. Results: The study was carried out on 570 subjects divided into three groups. Subjects in the middle and old age group showed 100% prevalence of attrition and subjects in younger age group showed 91.5% prevalence. Mean attrition score in subjects of young, middle and old age groups were 0.21, 0.82, 1.44 respectively. Mean attrition scores of males and females in all the age groups as 0.99, 0.67 respectively. Conclusion: Highest prevalence of attrition was seen in both middle and old age compared to younger age. Younger age showed least attrition score involving only enamel compared to older age who showed attrition involving enamel and dentine. As the age advances severity of attrition was also increased. Males showed higher attrition than females. Severity of attrition was also more in males.