Leadership development programs have become a strategic priority for organizations seeking to enhance leadership capabilities, improve employee performance, and achieve sustainable organizational success. Despite substantial investments in leadership training initiatives, concerns remain regarding their effectiveness in developing leadership competencies and improving organizational outcomes. This study assessed the impacts of leadership development programs on skill development and organizational performance. Specifically, the study examined the influence of leadership development programs on leadership skills, evaluated the relationship between leadership skill development and organizational performance, and investigated the mediating role of leadership skill development in the relationship between leadership development programs and organizational performance. A quantitative research approach employing a cross-sectional survey design was adopted. Data were collected from employees and managers who had participated in leadership development initiatives and analyzed using descriptive statistics, correlation analysis, regression analysis, and mediation analysis. The findings revealed that leadership development programs significantly enhance leadership skills, which subsequently contribute to improved organizational performance. The study further established that leadership development programs exert both direct and indirect effects on organizational performance, with leadership skill development serving as a partial mediator. The findings support Human Capital Theory, Transformational Leadership Theory, and Social Learning Theory by demonstrating that investments in leadership development contribute to individual competency enhancement and organizational effectiveness. The study concludes that leadership development programs are valuable strategic investments for organizations seeking to strengthen leadership capacity and improve performance outcomes.