<![CDATA[Employee loyalty is one of the important aspects in organizational sustainability, especially in the banking sector that faces performance demands, changes in work patterns, and digital transformation. Loyalty is not only related to employees' desire to stay in the organization, but is also reflected in commitment, dedication, and responsibility in carrying out their work. This study aims to explore the role of leadership and work environment in shaping employee loyalty at Bank ABC Cikarang Branch. The research uses a qualitative approach with a case study method. Informants were selected by purposive sampling by involving 10 employees consisting of branch leaders, deputy leaders, frontliners, and back office employees. Data was collected through in-depth interviews, observations, and documentation, then analyzed using thematic analysis and strengthened through triangulation of sources and methods. The results of the study show that employee loyalty is formed through the interaction between leadership and the work environment. Leadership that is communicative, participatory, supportive, and able to provide exemplary and appreciation encourages the formation of employee trust and commitment. Meanwhile, a comfortable physical work environment and a non-physical work environment characterized by harmonious interpersonal relationships, open communication, and support between employees strengthen employee attachment to the organization. Loyalty is further reflected through organizational commitment, willingness to give additional effort, dedication, and responsibility in completing work. This research confirms that employee loyalty is not formed instantly, but develops through consistent positive work experiences. Therefore, organizations need to strengthen leadership competencies and create a conducive work environment as a strategy to maintain employee loyalty.]]>
