Background <p>Hospital personnel with strong disaster management skills will work effectively and efficiently during disasters, ensuring better health services for staff, patients, and injured individuals.</p> Purpose <p>This study aimed to investigate the factors affecting the hospital personnel disaster management performance (HPDMP) of Giresun Training and Research Hospital (Türkiye) according to the opinions of all hospital personnel.</p> Method <p>In this study, survey data were collected from 797 hospital personnel between July and August 2023. HPDMP was employed as a dependent variable. Demographic characteristics, working conditions of personnel, disaster education, awareness of hospital disaster plans, and hospital disaster plan duty were used as independent variables. In addition, the arrangement of the hospital in relation to disaster risks, personnel self-efficacy, personnel coordination, coordination with other institutions, and disaster preparedness were also employed as independent variables.</p> Results <p>The hospital’s disaster management performance was good. Personnel who received sufficient disaster education and had more knowledge about hospital disaster plans believed that HPDMP was greater. According to hospital personnel, disaster preparedness and coordination with other institutions were the factors that most strongly increased HPDMP.</p> Conclusion <p>This study will provide insight for scientists, decision makers, and practitioners working in the field of hospital disaster planning and management.</p>