For more than 100 years, China has seen waves of students and scholars heading overseas and studying in the West as well as the concomitant returning waves. This study draws on information obtained from secondhand documents and firsthand field studies to analyze and compare two returning waves involving the complex dynamics of globalization/indigenization of Christianity in China. The first returning wave began in the early 1900s and lasted until 1950, in which many went overseas because of their connections with Western missionaries. The second returning wave is currently occurring following the study-abroad fever after 1978, in which many were exposed to the proselytizing endeavor of overseas Chinese Christian communities and eventually converted to Christianity before returning to China. The article compares the following themes in relation to these two groups of Christian returnees: their negotiation with their religious identities upon the return, perceptions on the meaning of Christianity to themselves and to China, their transnational religious networks, and potential implications to the glocalization of Christianity in China. Consequently, it involves the following topics that are important throughout the modern Chinese history: modernity/religion paradox, East–West interaction in relation to Christianity, contributions of Western-educated professionals to China, glocalization of Christianity in China, and complex internationalist/nationalist interaction.