We explore offshore outsourcing through the lenses of Catholic Social Teaching (CST). First, we review the outcomes of the 30-year debate in business ethics on issues related to offshore outsourcing. We then cluster authors into two groups-the justice-centered approach and the welfare-centered approach-corresponding to different perspectives on the ethical challenges of offshoring. In the second part, we present and apply the four fundamental principles of the CST (human dignity, subsidiarity, solidarity and the common good) to offshoring, in dialogue with the previous debate. The unity and interconnection among the CST's fundamental tenets provide a cohesive framework that integrates the points made by the justice-centered and welfare-centered approaches, while introducing the principle of solidarity, more focused on the worker as a person and their flourishing. CST also stresses the need to initiate processes oriented toward structural changes for the sake of human dignity and the common good.