PURPOSE: This study was designed to assess the level of super-leadership and self-leadership, identify correlations among variables and identify the factors influencing organizational commitment of clinical nurses. METHODS: Participants were 217 nurses working in four hospitals located in Seoul and Gyeonggi Province. Data were analyzed using descriptive statistics, independent t-test, one way ANOVA, Scheffé test, Pearson Correlation, and Multiple Regression. RESULTS: The most influential factor for organizational commitment was super-leadership (β=.28, p<.001), followed by education (β=.16, p=.007), the number of unit nurses (β=-.18, p=.003), self-leadership (β=.17, p=.008), and the number of patients being under 10 (β=.12, p=.046). These factors accounted for 23% of the variance in organizational commitment (F=13.46, p<.001). CONCLUSION: The results of this study suggest a need for strategies to improve organizational commitment of nurses by enhancing nurse' self-leadership through nursing managers' super-leadership.