This study aimed to identify the high impact competencies needed by Malaysian school leaders. Researchers developed an instrument called KOMPAS to assess 26 competencies across 6 domains for 596 school leaders and 140 ministry officers. Statistical analysis identified 8 competencies as high impact: managing change, quality focus, managing ICT, decision making, problem solving, school improvement, capacity building, and performance management. The study provides data to help plan effective training programs for school leaders.