This MBA dissertation investigates the influence of leadership styles on employee performance at HSBC Sri Lanka. It examines transformational, transactional, and contingency leadership theories, utilizing quantitative data and a positivist research approach. The study assesses the effectiveness of different leadership styles within HSBC's organizational context. The research uses reliability and validity testing, demographic analysis, correlation analysis, and regression analysis to derive findings and conclusions. The results suggest that transformational leadership is most effective in enhancing employee performance at HSBC. Based on these findings, the dissertation provides relevant recommendations for improving leadership capabilities and organizational effectiveness. Desklib provides access to this document and a wealth of study resources for students.