Background: Disasters are the most vulnerable factors affecting human life and the environment. Hospitals must be adequately prepared to manage internal disasters with proper disaster preparedness plans. Aim: Design and validate a Diarb Negm Central Hospital disaster management plan. Methods: Cross-sectional design was utilized. It included two group; a target group of all 200 available hospital staff and a jury group of 35 faculty members. Data collection tools consisted of three tolls; Disaster Expectation Questionnaire, Disaster Preparedness Checklist, and Validation Form for Disaster Management Plan. Results: Most study participants had low internal disaster expectations and awareness of the total disaster preparedness plan. More than half of the study participants had no awareness of the internal disaster preparedness plan. Conclusion: The developed plan agreed with about-face and content validity by the majority of the jury group. Recommendations: Implement the developed, validated plan in the study settings for a trial period
to test its applicability and to amend any possible deficiencies. Conducted disaster drills for hospital staff periodically to improve their awareness and skills to deal with any internal disaster.