Purpose: The purpose of this study was to examine perceptions of global health education (GHE) among medical students and their involvement in global health activities and identify priorities of educational needs for developing GHE programs.Methods: This study was cross-sectional and conducted through an online survey for medical students. The participants were students attending medical schools nationwide, and the final analysis target was 678. The survey developed questionnaires necessary for research purposes regarding global health-related experiences and perceptions, level of awareness of global health competencies (GHC), and needs assessments. The data were analyzed using the frequency analysis, chi-square test, independent t-test, Borich Needs Assessment Model, and the Locus for Focus Model.Results: In total, 60.6% (411/678) agreed on the need for GHE, whereas 12.1% (82/678) agreed on the appropriateness of GHE in the current medical school curriculum, indicating a perception gap between the necessity and the status. At the current level of awareness of global health and GHC, we identified statistically significant differences according to gender, participation in global health activities, and GHE. In the analysis of the educational needs of GHC, all items of GHC had statistically significant differences between the importance level and the current level, and priorities were derived. The competency with the highest priority was domain A (Global Burden of Disease).Conclusion: We expect the findings of this study to be used in Korean medical education as fundamental data to prepare a hereafter research foundation for GHE and discuss systematic GHE based on GHC.