Objectives　This study aimed to clarify the core values and competencies of public health nurses (PHNs) who contribute to improve health issues in transitioning societies, based on a consensus among PHN-related organizations, including practitioners and education researchers.

Methods　A draft defining the core values and competencies of PHNs was developed through five consultation sessions with 20 executives and nominees of organizations in each area of PHN practice, education, and research to collect, categorize, and refine the items. The expert panel comprised 534 nominees from six PHN-related organizations, and three rounds of Delphi surveys were conducted. The consensus criteria were ≥70% for agreement and ≥80% for firm agreement.

Results　In the first round, 272 expert panel nominees (50.9%) responded, and 217 responded in all rounds. The draft was revised based on the feedback from each round. By round 3, >90% agreed on the core value and competency frameworks and definitions.

Conclusion　The Delphi survey revealed the three core value frameworks and definitions of “social justice in health,” “human rights and autonomy,” and “health and safety” and eight core competencies of “professional autonomy and responsibility,” “scientific research and use of information science and technology,” “population-based assessment and analysis,” “practices for health enhancement and prevention,” “building systems to improve public health,” “management of healthy community development,” “person/community-centered collaboration and cooperation,” and “communication for consensus and solutions,” with a firm agreement. Eventually, these frameworks would be the bases for creating national standards of practice, education, and research to satisfy the consensus levels of PHNs and PHN-related organizations.