Aim–To know the prevalence of HIV among patients visiting Dental OPD at Indira Gandhi Institute of Medical Sciences, Patna. Material and Method–A retrospective study was conducted in Dental OPD at Indira Gandhi Institute of Medical Sciences, Patna. Data was collected from all the patients undergoing surgical treatment and from patients who had peviously been tested for HIV elsewhere Result –Mean age was 39.64 + 16.106 years 30% of the subject group were female while 70% were male. On basis of gender, 0 out of 15 females were positive while 2 out of 35 male patients were positive for HIV . In our study, the prevalence of HIV was 4% which was statistically insignificant.