The purpose of this chapter is to identify the antecedents of mature workers' turnover intention and to review the role of organizational culture in their intention. By reviewing 20 empirical studies on mature workers' turnover intention published between 2006 and 2017, the authors identified 44 antecedents of mature workers' turnover intention at the individual, group/organizational, and intersectional levels. This literature review reveals that the antecedents of mature workers' turnover intention are diverse, including personal characteristics, work-related behavior, leadership, HR practices, job characteristics, organizational culture, and work-life balance. They also discuss the role of organizational culture in mature workers' turnover intention based on the findings. Finally, they present implications for HR practitioners and recommendations for future research.