Purpose of study: Social networking sites have gained fame over the past few years. People have started to use them regularly. One Such site is Facebook which has become the centre of attention and has created an urge to explore certain issue among the researchers. This study investigates the affect of personality variables on face book addiction and if it has any negative effect on the student academic performance. Methodology Applied: Survey research method was employed. Questionnaires were distributed among students using in the department of Management Sciences. Valid questionnaires (n=150) were filled and returned. Findings and results: Regression analysis was used to analyze the data. Extroversion, neuroticism and Openness to experiences are all positively correlated to FBA. Also, there is negative relationship between FBA and Academic performance. Originality of the study: Overall, this research explains that extroversion ahs play a major role in determining Facebook Addiction and that there is no significant relationship between academic performance and Facebook Addiction.