The study investigates the impact of product quality and social media marketing on brand loyalty through customer satisfaction in the context of Japanese restaurants in Jakarta. Utilizing primary data from 203 respondents who frequented these restaurants, collected via questionnaires employing purposive sampling, the research employs partial least squares (PLS) analysis through SmartPLS 3.3.3 software. Results indicate direct positive relationships among variables. However, no direct positive relationship was found between product quality or social media marketing and brand loyalty. Instead, both product quality and social media marketing indirectly influence brand loyalty through customer satisfaction. The study highlights direct positive associations between product quality and customer satisfaction, social media marketing and customer satisfaction, and customer satisfaction and brand loyalty. Nevertheless, no direct positive link was found between product quality or social media marketing and brand loyalty. The indirect effects reveal that product quality affects brand loyalty through customer satisfaction and social media marketing influences brand loyalty through customer satisfaction as well. These findings underscore the significance of customer satisfaction as a mediator in the relationship between product quality, social media marketing, and brand loyalty in the hospitality industry.