Relationship marketing is a central and important tenet in marketing thought and considerable research effort in the discipline has been devoted to examining various facets of relationship marketing, resulting in a large body of knowledge. In this study, the authors specifically focus on the international dimension of the relationship marketing literature and use citation and co-citation data to identify and unfold its intellectual foundations. The goal is to provide new and meaningful avenues for future research based on the knowledge structure upon which international relationship marketing (IRM) stands. The examination of the literature spans over forty years, divided into three time periods that permit detection of longitudinal trends as well as meaningful visual representations of the co-citation data. Overall, the authors survey 29 key publications and identify 3,509 articles that include 230,684 citations, and examine the data for 1972-1993, 1994-2003, and 2004-2013 to identify research possibilities. Based on the analysis of emergent multidimensional scaling results, the authors discuss potential future IRM research incorporating social relations and networking, new ventures, internationalization, trust and commitment, tacit knowledge, and cultural values. Journal of Relationship Marketing has published numerous reviews of various aspects of the relationship marketing literature. 2 IRM publications are authored by individuals who possess relevant knowledge regarding theirprojects and, therefore, their choice of keywords capture the essence and core of their articles. As our initial search for keywords was comprehensive, it is reasonable to expect that they collectively represent the IRM literature. An alternative approach used in some research is to conduct a survey of authors as experts whose publications on the topic under investigation have been heavily cited to seek their direct input regarding appropriate keywords (e.g., Chabowski, Samiee, and Hult 2013).