This research paper investigates the impact of Corporate Social Responsibility (CSR) on consumer behavior, focusing on how CSR initiatives influence consumer perceptions, attitudes, and purchasing decisions. Through a comprehensive review of theoretical frameworks and empirical studies, this paper explores the dimensions of CSR—economic, legal, ethical, and philanthropic—and their effects on brand perception, trust, and purchase intentions. Using a mixed-methods approach, the study combines quantitative surveys and qualitative interviews to provide a nuanced understanding of the mediating factors such as consumer awareness, cultural context, and personal values. The findings reveal that CSR significantly enhances brand image and consumer trust, driving positive consumer behavior. The paper concludes with strategic recommendations for businesses to effectively integrate CSR into their operations and communicate their efforts to consumers, while also identifying areas for future research.