Asia Pacific dominates the Hepatitis B Antiviral Drugs market growth, holding >45% share, while Africa is the fastest-growing region with 8.1% CAGR regional forecast. In North America, integrated EHR-driven screening, high insurance penetration, and the FDA’s accelerated approval pathway sustain premium tenofovir alafenamide uptake. Europe benefits from pan-EU HBV vaccination mandates, reference pricing that favors generic entecavir, and Horizon Europe grants catalyzing biomarker research. Across Asia Pacific, China’s National Essential Drug List inclusion, Japan’s reimbursement premium for functional cure therapies, and India’s 1.4 bn-dose immunization program expand treatable pools. Latin America is propelled by PAHO bulk procurement, rapidly scaling birth-dose vaccination in Brazil/Argentina, and WHO-backed tiered pricing that lifts access in middle-income cohorts. In the Middle East & Africa, Gulf sovereign funds co-financing specialist centers, Nigeria’s forthcoming viral-hepatitis policy, and population pyramids skewed toward high-prevalence youth drive demand despite infrastructure gaps.