Over several decades, a field of research has emerged to examine social and environmental factors that contribute to health inequities among children and youth with special healthcare needs (CYSHCN), with the goal of reducing inequities through identifying and mitigating these social determinants of health (SDH). The Children and Youth with Special Healthcare Needs National Research Network (CYSHCNet) national research agenda development process, described in a companion article, recognized SDH, as experienced by CYSHCN, and the effects on health inequity and child and family outcomes as a high priority area. Important gaps named included which strategies best identify and mitigate the effects of negative SDH and which outcomes are most meaningful to families receiving SDH-focused interventions. In this area, the highest priority questions were the following: 1) How can SDH be routinely addressed in the course of care for CYSHCN? 2) Which interventions most effectively integrate SDH to improve child and family outcomes? Here, we discuss the impact of SDH on CYSHCN, efforts to screen for and intervene upon SDH in this population, and gaps in the current research on SDH specific to CYSHCN. We make several recommendations for research studies that will move the field forward. This work should achieve a greater understanding of patterns and impacts of SDH experienced by CYSHCN. It will also contribute to optimizing identification of SDH and improving interventions to achieve equity in health outcomes identified by patients and families as important to them.