Abstract: This study aims to (1) test and analyze leadership on employee performance at PT. Bank Mandiri (Persero) Cabang Dumai, (2) tested and analyzed the influence of Organizational Culture on Employee Performance at PT. Bank Mandiri (Persero) Cabang Dumai, (3) tested and analyzed the influence of Leadership and Organizational Culture on Employee Performance at PT. Bank Mandiri (Persero)…