Online consumer behavior is a specialized domain within consumer research and marketing science that systematically investigates the processes, decisions, and actions undertaken by individuals when searching for, selecting, purchasing, using, and disposing of products and services within digitally mediated environments. This field examines the unique dynamics introduced by online platforms, digital technologies, and internet connectivity, exploring factors such as website design influence, social media interactions, e-commerce interfaces, data privacy concerns, and the impact of digital marketing strategies on consumer psychology and transactional outcomes, providing critical insights for businesses, policymakers, and academics operating in the digital economy.