The purpose of the article is to contribute to the development of an adequate public theology of globalisation that takes its point of departure in the option for the poor. This contribution is made in four steps: First, some of the complex problems that globalisation implies are mapped out. Second, different approaches within the churches, in particular the prophetic and the more reformist approaches, are illustrated by discussing three church documents on globalisation. In the third part of the article a theological framework for finding common ground within the churches, is offered. Finally, five guidelines for an adequate public theology of globalisation are formulated.