The pandemic of the Coronavirus has already had a huge impact on practically every aspect of human life, particularly the health-care sector. As a result, organizations must be well-prepared for crisis management while preserving a healthy workforce's sincere commitment. Aim: To determine the effect of an educational program about organizational preparedness for crisis management on organizational commitment and occupational stress in the time of Covid19. Design: Quasi-experimental design with one group pre and post-test assessment was utilized. Setting: The study was carried out in all in-patient medical, surgical, and intensive care units at Benha Teaching Hospital Subjects: A convenient sample of all available head nurses from the above- mentioned study setting (60) head nurses within inclusion criteria Tools: Four tools were used to collect the data as follows; (I): Knowledge about Crisis Management Questionnaire, (II): Perceived organizational preparedness for Crisis Management Scale, (III): Organizational Commitment Questionnaire and (IIII): Nurses’ Occupational Stress Scale. Results: There was an improvement in Mean scores and St-deviations of head nurses' total level of knowledge and perception regarding hospital preparedness for crisis management, organizational commitment, and occupational stress immediately after program implementation. Conclusion: Providing an educational program about "organizational preparedness for crisis management" was effective in improving head nurses' knowledge and perception levels regarding hospital preparedness for crisis management which in turn improved head nurses' commitment and occupational stress. Recommendations: Hospital managers have to arrange awareness programs about "Preparedness for crises management" for all hospital staff, and make sure that all staff members know their roles, and responsibilities during facing crisis.