This special section represents a collection of papers on recruitment and retention of couples from underrepresented backgrounds in couple intervention research. Research shows that couples from underrepresented backgrounds tend to be missing from intervention research. This gap is concerning; conclusions about the effectiveness of these interventions are not being drawn from diverse and representative samples and it may be that scholars are inadvertently creating inappropriate and inaccessible services for these couples. Recruiting and retaining these couples require specialized efforts and attention. In this summary paper, we describe (a) the origins of this special section, (b) the existing research on recruitment and retention in couple intervention research, (c) an overview of the papers in this special section, and (d) future recommendations and directions for this aspect of methodology in couple research. This collection of papers elevates the need to involve community members from the beginning, reduce barriers to access, and create recruitment materials and a service delivery environment that is specific for the target population.