Leadership and stress are common concepts in nursing, and this study explores empirically the connection between leadership and stress of conscience in the context of aged care practice. Previous literature has shown that when staff are unable to carry out their ethical liabilities towards the residents, feelings of guilt may occur among staff, which may be an expression of stress of conscience. Although leadership has been described as crucial for staff’s work perceptions of stress as well as for person-centred practices, the influence of nursing home managers’ leadership on stress of conscience among staff and person-centred practices is still not fully explored. This study attempts to address that knowledge gap by exploring the relationship between leadership, person-centred care, and stress of conscience.