This study investigates the impact of national stereotypes on consumer purchasing decisions (CPD) across diverse demographics. Utilizing regression analysis, the research examines how factors such as national stereotypes, price, promotion, and product quality influence consumer behavior. The findings reveal that national stereotypes significantly shape CPD, highlighting the importance of cultural sensitivity in marketing strategies. While other factors like price and promotion also contribute to purchasing decisions, their effects are less pronounced compared to national stereotypes. This research emphasizes the need for marketers to align their messaging with cultural perceptions to enhance consumer engagement. Future studies should explore the dynamic nature of national stereotypes in the context of globalization and digital media, providing insights for brands aiming to thrive in international markets.