Background: Shared governance requires collaborative leadership implemented on the principles of partnership, justice, responsibility and ownership. This actually accomplish many benefits to the organization and improve nurses' organizational commitment level. Aim: This study aimed to assess the effect of shared governance educational program for head nurses on nurses' organizational commitment. Research design: A quasi-experimental design was utilized in this study. Setting: The study was conducted at Kafer El Sheikh General Hospital. Subjects: Include all head nurses (60), and a simple random sample of (184) nurses, who were working at the previous setting. Tools: Three tools were used; (I) Shared Governance Knowledge Questionnaire, (II) Professional Shared Governance Questionnaire, and (III) Organizational Commitment Questionnaire. Results: The majority (89.7% and 66.8%) of studied nurses had high organizational commitment level at immediate post and follow up program phases, respectively. Conclusion: The educational program was successful and lead to improvement in head nurses' shared governance knowledge and level at immediate post and follow up program phases. In addition, there was a highly statistical significant positive correlation between head nurses' total shared governance knowledge and level and total nurses' organizational commitment level at immediate post program. Recommendations: Integrating the philosophy of shared governance into the values and mission of the organization through developing a set of policies that related to the principles and methods of its application. Maintaining a supportive work environment to promote nurses' organizational commitment.