We make a contribution to narrowing the science–practice gap by adopting a multi-level theory-based approach to investigating an important issue for practitioners in human resource management: human resource (HR) certification. Despite the facts that more than 150,000 individuals in more than 70 countries have become certified and that HR certification has turned into a million-dollar industry, there is no scholarly evidence regarding the impact of certification on any important individual- and organizational-level outcomes (e.g., individual's career progression and HR department-level effectiveness). First, we distinguish among certification and licensing. Second, we describe the purported benefits of HR certification. Third, we review the existing literature on perceptions of HR certification; including a survey we conducted with 189 HR professionals. Finally, we present a research agenda, including 14 testable propositions, to guide future scholarly research on HR certification with the goal to gather evidence, which to date is not yet available, regarding the value of HR certification for individual practitioners, organizations, and the HR profession