This article examines the strategic management practices of international nongovernmental organizations (INGOs) through a systematic literature review (SLR). INGOs, committed to social welfare and aligned with the United Nations Sustainable Development Goals (UNSDG), face limited discourse on internationalization and strategic management. By applying SLR, the scope of literature and emerging themes are identified. Bibliometric analysis reveal trends in INGO research publication, highlighting increasing scholarly attention. Emerging themes emphasize strategic management, knowledge communication, and innovation integration for INGO success. However, limitations in relying solely on publication data suggested the need for further engagement with INGO managers. Addressing challenges, particularly in integrating digital innovations, is crucial for INGOs to navigate a rapidly evolving world and fulfill their mission effectively.