There is extensive knowledge in the ablation of ventricular arrhythmias in patients with Chagas’ cardiomyopathy, as well as specific characteristics of the arrhythmogenic substrate, and the need for an epicardial approach to achieve success. On the contrary, no publications currently address the ablation of atrial fibrillation in these patients or the characteristics of the arrhythmia such as the successful ablation sites. Our two case reports highlight the association of Chagas’ disease with atrial arrhythmias, the tailored approach that was needed to give an appropriate treatment and a discussion of our current knowledge of Chagas’ cardiomyopathy as a substrate for atrial arrhythmias.