This themed issue was inspired by emerging conversations between practitioners in the fields of action research and conflict transformation-a conversation that mirrored us both as guest editors. We see the potential for the approaches of each of our fields to strengthen each other's work towards shared goals of transformation supporting social justice. Therefore, we offer this issue on Action Research and Conflict Transformation as a timely refocusing and reengagement for both fields. We have chosen the term "conflict transformation," (Bush and Folger, 2004), which is often used interchangeably with "peacebuilding," for this themed issue because it resonates with ARJ's mission to encourage action research transformations guided by concern for realizing a more sustainable world (Bradbury et al., 2019) and with the journal's refreshed choice points for action research quality (Bradbury et al., 2020). This themed issue responds to the call of Goal 16 of the UN Sustainable Development Goals, to "promote peaceful and inclusive societies for sustainable development, provide access to justice for all, and build effective, inclusive and accountable institutions at all levels" (United Nations Department of Social and Economic Affairs, n.d.). Conflict transformation goes beyond "conflict resolution," which focuses mainly on negotiating agreements, and emphasizes the process of engaging conflict as a means of generating constructive change and restoring relationships (Lederach, 2003). We believe that action research and conflict transformation can significantly increase their impact on this goal through a synergistic relationship in which conflict transformation is seen as an integral part of action research, and action research is seen as an integral part of conflict transformation. The conflict transformation field has long had roots in action research and adopted many action research practices without always being aware of it. Conflict transformation approaches emphasize developing shared understandings of shared problems, and together envisioning ways forward that meets everyone's needs. John Paul Lederach (2005) presents the role of the "moral imagination" in conflict transformation; people facing a conflict with moral imagination are rooted