Introduction: This project was aimed to determine the seropositivity status for Hepatitis B surface antigen (HBsAg), antiHepatitis C (HCV) antibodies and antibodies to Human Immune Deficiency Virus (HIV) I and II in healthy blood donorsdonating blood at Shaikh Zayed Hospital Lahore.Material and Methods: The relevant data was collected during a period of 28 months from 1st January 2006 till 31st March2008. It was a cross sectional study which entailed screening of 60719 healthy donors. The donors were aged between 16years to 45 years. There were 93.43% males and 6.57% females.Results: The seroprevalence of Anti HCV antibodies was 3.870%; for HBsAg it was 1.407%; for HIV antibodies it was0.00658%. Our study demonstrated a higher seropositivity for HIV in healthy donor population than all of the previousreports except one with which it matched precisely. HBsAg showed a definite downwards inclination when compared withsimilar previous studies carried out in the last 7 years. Seroprevalence of anti HCV antibody was found to be similar whencompared with previous studies and demonstrated a higher trend in large cities with a multiethnic population.Key Words: MeSH: Blood donors, seroprevalence, HbsAg, antiHCV, HIV.