In the intricate and dynamic world of modern economies, competition law emerges as an indispensable regulatory mechanism. It underpins the belief in the power of open, fair, and efficient markets, and operates at the intersection of economics, law, and policy. The primary goals of competition law, or antitrust law as it's often known in the United States, include promoting economic efficiency, ensuring consumer welfare, and maintaining market fairness. However, the interpretation and priority of these objectives can vary significantly across jurisdictions, reflecting distinct legal traditions, economic philosophies, and socio-political contexts. This chapter delves into these core goals, offering a comprehensive exploration of their theoretical underpinnings, practical implementations, and the balancing act often required to navigate conflicts that arise between them.