This study explored the learner characteristics that influence educational outcomes across various learning contexts—formal, non-formal, and informal—within six continents: Asia, Africa, North America, South America, Europe, and Australia. By analyzing peer-reviewed literature and empirical studies, the research identifies key learner traits such as motivation, cognitive style, self-regulation, and socio-emotional background, as well as the cultural and systemic factors that shape them. Findings reveal that although these characteristics are universally present, their manifestations and implications differ based on geographic, cultural, and economic contexts. The study concludes with recommendations for educators, policy-makers, and curriculum designers to adopt learner-centered approaches that respect and respond to global diversity in learning characteristics.