This study aims to find out (1) the influence of Relationship Marketing on OASE Coffee Customer Loyalty, (2) The Effect of Cafe Atmosphere on OASE Coffee Customer Loyalty, (3) Relationship Marketing and Cafe Atmosphere Against OASE Coffee Customer Loyalty. This research includes associative quantitative research. The population in this study were all OASE Coffee customers. The sampling method uses criteria, which are OASE Coffee customers and have made visits and purchases 3 times. Data types are primary data obtained from the results of filling out the questionnaire with a 4-point Likert scale assessment. Analysis prerequisite tests include normality test, heteroscedesity test and multicollinearity test and the analysis technique used is multiple linear regression analysis

Keywords : Relationship Marketing, Cafe Atmosphere, Customer Loyalty OASE Coffee.