This chapter presents a critical review of the existing organ donation literature. The objective of this chapter is to identify the main gaps in the current body of literature on the organ donation context and the marketing discipline. This chapter initially discusses social marketing within the context of organ donation for social change. Following on, this chapter provides a systematic quantitative literature review of the existing organ donation studies from the period of 1985–2019. Then, this chapter details and discusses the review method. The literature review findings include the geographical distribution of 262 peer-reviewed organ donation studies around the world; the frequency of published articles over the period 1985–2019; the disciplinary scope of these studies; the sample characteristics; and the key theories and models used to inform organ donation studies. Finally, this chapter concludes with a discussion of the main limitations of existing organ donation studies.