Digital narrative storytelling has emerged as a central strategy for global brands seeking to build emotional resonance, cultural relevance, and transnational identity across diverse consumer groups. Unlike traditional advertising formats that focus on transactional messaging, narrative-driven digital content fosters loyalty, brand mythology, participation, and community-driven meaning-making. This paper examines the theoretical foundations, narrative structures, and cross-cultural adaptation practices that shape digital storytelling for global brands. Using conceptual models, hypothetical datasets, and digital engagement analysis, the findings demonstrate that narrative-based branding increases emotional attachment, improves cross-market consistency, and amplifies shareability through social platforms—particularly short-form video ecosystems. A Global Digital Storytelling Framework is proposed to guide brand practitioners.