The promotion of a flexibility-oriented organizational culture, based on support and innovation, may provide a great value in today´s competitive economy. This type of organizational culture may be a breeding ground for authentic leadership, which, in turn, has positive effects on employees´ attitudes. This study examines how flexibility-oriented organizational cultures facilitate positive outcomes at the employee level through its impact on authentic leadership. Multiple regression analysis was used to analyze the data from 571 employees belonging to several Spanish private organizations. The results show that authentic leadership partially mediates the positive relationship between flexibility-oriented organizational cultures and employees´ job satisfaction. These findings advance theory on the integration of organizational culture in authentic leadership research and provide guidelines for improving employees´ job satisfaction.