The emerging global needs call for an expanded role of public health nurses in global health. Their competency is essential in responding to the emerging health challenges and to contribute to the attainment of Millennium Development Goals and Sustainable Development Goals. This paper determined the self-assessed level of confidence of public health nurses on the global health competencies. The study utilized a quantitative, descriptive research design. A survey tool that contains a list of the global health competencies on global burden of disease, health implications of travel and displacement, social and environmental determinants of health, globalization of health and health care, health care in low resource settings, health care as a human right and development resource was utilized. A total of 17 public health nurses from the 16 health centers in Baguio City, Philippines were recruited through total enumeration. Higher scores were given to the competencies on social and environmental determinants of health while lower scores were found on competencies related to globalization of health and health care. Overall, the public health nurses in Baguio City assessed themselves as often confident on the global health competencies. The study highlights areas for improved education and training, which are essential in attaining the global health competencies. Integration of global health concepts in the practice of public health nurses is required to enhance their competency in dealing with global health issues and challenges. This study recommends global health training for public health nurses to enhance their awareness, preparation, and confidence in the global health competencies.