This study examined the relationship between ethical leadership and organizational performance in the Niger Delta Development Commission (NDDC), with a particular focus on the moderating role of knowledge sharing. Ethical leadership was conceptualized through three dimensions: fairness, power sharing, and role clarification, while organizational performance was measured using innovation performance, operational performance, and stakeholder satisfaction. Knowledge sharing was included as a moderating variable to explore its influence on the effectiveness of ethical leadership in improving organizational outcomes. The study employed a cross-sectional survey design, using a structured questionnaire to collect primary data from 345 respondents across NDDC’s operational units in the Niger Delta region. Stratified random sampling, based on the states in the region, was used to select participants, ensuring representativeness and proportionality. Data were analyzed using descriptive statistics and Pearson correlation to test the hypothesized relationships. The findings revealed that all dimensions of ethical leadership—fairness, power sharing, and role clarification—positively and significantly influence innovation performance, operational performance, and stakeholder satisfaction. Additionally, knowledge sharing significantly moderated the relationship between ethical leadership and organizational performance, strengthening the positive effects of leadership behaviors on organizational outcomes. These results underscore the importance of integrating ethical leadership practices with knowledge management mechanisms to enhance employee engagement, innovation, efficiency, and stakeholder trust in public sector institutions. The study contributes to knowledge by providing empirical evidence on ethical leadership in a Nigerian public sector context, disaggregating its dimensions, and highlighting the moderating role of knowledge sharing. Practically, the findings suggest that NDDC managers should adopt fair, participative, and clearly communicative leadership practices, supported by robust knowledge-sharing systems, to achieve sustainable improvements in organizational performance. This research thus provides both theoretical and practical insights into the critical role of ethical leadership and knowledge sharing in promoting effective public sector governance.

 Keywords: Organization Performance, Ethical Leadership, Role Clarification, Stakeholder Satisfaction