This chapter aims to analyze which ethical challenges clinicians face when practicing different forms of psychotherapy integration. With this purpose, the authors first define psychotherapy integration and differentiate four types of integrative approaches. Drawing on Beauchamp and Childress's (2013) principles of biomedical ethics, the chapter highlights important common and particular ethical issues in the four types of integrationist psychotherapy practice. Finally, the authors frame questions for future research into integrative-psychotherapy ethics and consider possible clinical responses to ethics issues raised in integrative therapy.