Nowadays, hospitality industries are not free from service concerns. This industry has the goal to satisfy their customers. Since there are lots of new competitors, customers tend to demand for better service quality. Meeting and exceeding customer expectations to achieve customer satisfaction are the major challenges in this industry. The present study aims to measure the service quality towards customer satisfaction at Karibia Boutique Hotel Medan. In this study, the SERVQUAL model has been applied to examine the five dimensions of service quality, which are tangibles, reliability, responsiveness, assurance, and empathy towards customer satisfaction at Karibia Boutique Hotel Medan.In this research, the method used by the writer is quantitative analysis method. The types of data used are primary data and secondary data. The data was collected through interviews and questionnaires that were distributed to 80 guests at Karibia Boutique Hotel Medan. This study used a convenience sampling method as samples to be tested using SPSS. The scale used to measure variables is the Likert scale.Based on the results, it revealed that service quality has a positive correlation with customer satisfaction, with the correlation value of 0,431. The value of determination coefficient R2 is 0,190. This value means that service quality (X) simultaneously influences customer satisfaction (Y) equal to 19%, and the rest of 81% is influenced by other factors.Based on the data analysis and discussion, the result of this research proves that service quality does have influence towards customer satisfaction at Karibia Boutique Hotel Medan.