In recent years the economy has become globalized. Globalization is the increased flow of goods, services, capital, people, and culture facilitated by innovations in transportation and communication technologies. This chapter examines the phenomenon of globalization and its impact on Catholic social teaching. It looks, in particular, at Pope Benedict XVI’s encyclical Caritas in Veritate. Pope Benedict criticizes how the current global economy exploits and excludes vulnerable populations around the world. Caritas in Veritate further develops the communio framework initiated by John Paul II and proposes that the communion of the three Persons of the Trinity provides a model for the shape globalization should take, recognizing unity in the midst of diversity. The chapter also looks at how Catholic social thought itself is globalizing, examining in particular the work of Mary Mee-Yin Yuen from Hong Kong and Stan Chu Ilo from Nigeria.