Introduction: Dental anxiety (DA) is a condition that causes a decrease in population addressability to the dentist with adverse consequences for long–term oral health. Aim and objectives: evaluate prevalence of dental anxiety among patients visiting the Out Patient Department (OPD) of a Dental Institution in Darbhanga (Bihar). Objective was to determine the prevalence of DA on person visiting dental institute. Materials and Methods: A total of 500 subjects were included in this study. All subjects were given a DA questionnaire Statistical Analysis: The collected data were subsequently processed and analyzed using SPSS statistical package version 17. Result: 45% of subjects were found to be slight anxious whereas 38 % were fairly anxious. No subject was found in extreme anxious category. Conclusion: DA plays significant factor in regular dental treatment and dental treatment opted by patients.