The Graduate School of Applied and Professional Psychology (GSAPP) is a division of Rutgers, The State University of New Jersey, with a faculty responsible to its own dean. It maintains close working relationships with other departments and graduate schools in the university, primarily through joint faculty appointments. Psychologists from the University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School in Piscataway and the University of Medicine and Dentistry of New Jersey-New Jersey Medical School in Newark also hold joint appointments in the school.

In addition to its core faculty and joint appointments within Rutgers and at the medical schools, GSAPP is able to benefit from the services of senior psychologists working in applied settings throughout the state. These psychologists serve as visiting faculty, contributing faculty, or field supervisors and have an important role in the functioning of the professional school.

Stanley B. Messer has served as dean of the school since his appointment in 2001. The first dean of GSAPP was Donald R. Peterson, who retired in 1989 and is deceased. Perry London served as dean from 1989 until his death in 1992. Sandra L. Harris served as dean from 1992 to 2001.