National identity plays a powerful role in shaping brand storytelling by embedding cultural myths, historical narratives, geographic symbolism, and collective emotions into marketing communication. This research examines how national identity becomes a branding asset across sectors including tourism, food and beverages, luxury goods, manufacturing, and digital services. Using cultural narrative theory, country-of-origin effects, and symbolic interaction frameworks, the study analyzes how brands leverage nationalism, heritage, and geopolitical identity to connect with consumers. Hypothetical cross-market data suggests that brands that strategically align with nation-based narratives achieve higher brand loyalty and perceived authenticity; however, risks include political polarization, cultural stereotyping, and over-romanticization.