Much research has been conducted on the various functions that Korean Protestant churches provide for Korean immigrants and the centrality of the church for the community. Most of this research, however, focuses on the Korean American church as an immigrant enclave. Korean American churches are studied essentially as ethno-religious enclaves, detached and secluded from the larger society. Counterbalancing this tendency, this paper examines the multidimensional ways that Korean American Protestants and their churches are extending beyond their ethnic borders. Korean immigrant churches are civically and religiously moving beyond the enclave while also catering to the needs of co-immigrants. Second-generation Korean American congregations are also engaging the broader society even as they create unique hybrid spaces for themselves. Finally, there are Koreans who enter the United States specifically as missionaries to evangelise individuals in and outside of the Korean Diaspora, including white Americans. In their varied ways, Korean American evangelicals are taking part in efforts to bring spiritual revival and renewal in America and beyond.