The authors outline a new identity for the professional psychologist termed Unified Professional Psychology (UPP). UPP combines recent movements toward a unified psychological science, an independent professional psychology, and Combined-Integrated (C-I) doctoral training programs in psychology. The value in the synthesis of these ideas is that they (a) provide a comprehensive system of thought that defines the science and practice of psychology in a commensurable manner, (b) offer a clear identity for the professional psychologist, and (c) set the stage for a training model that develops competencies that will prepare graduates to serve as leaders and advocates in a wide array of health settings. Issues pertaining to why a new view is needed and how UPP specifies the science–practice relationship are addressed in detail. © 2004 Wiley Periodicals, Inc. J Clin Psychol.