The chapter examines adherence and conversion in the Daoist religious tradition. In addition to discussing “conversion” as a comparative category and as a cultural phenomenon in China, this study investigates Daoist views on the subject and the ways in which Daoists have set parameters for religious affiliation. This is followed by an examination of domestic conversion, by people of both Chinese (“Han”) ethnic identity and ethnic minorities, to Daoism in Chinese history. The final section presents information on foreign conversion to Daoism. This includes brief discussions of Daoist conversion in Hong Kong, Korea, Japan, and the modern West. Here the chapter suggests that Daoism has become a global cultural and religious phenomenon. Throughout this chapter, specific attention is given to the ongoing process of voluntary conversion to Daoism as well as to the diverse motivations of potential converts.