The aim of the present study is to examine the relationship between social self-efficacy and authenticity. The Perceived Social Self-efficacy Scale and the Authenticity Scale were administrated to a sample of 308 university students. The research data were analysed by correlation and linear regression analysis. Social self-efficacy is positively related to authentic living, and is negatively related to accepting external influence, and self-alienating. The linear regression analysis showed that social self-efficacy was a significant predictor of authenticity. The significance and limitations of the results are discussed.