This study examines trust in domestic brands among Vietnamese consumers. It defines trust and relevant theories. Culture plays a role, as Vietnamese society is collective, feminine, and risk-averse with strong family and social influence. The study profiles typical Vietnamese consumers who trust friends, family, and seniors the most. It finds that consumers develop trust in domestic brands through advertising, product experience over time, and recommendations from others. Building brand trust requires understanding consumers, choosing effective advocates, and providing consistent experiences influenced by social and cultural factors.