Abstract The validity and utility of various projective and non-projective tests with handicapped populations were reviewed. Five areas of handicapping conditions were considered: Blindness, Deafness, Speech Disorders, Motor Disorders, and Intellectual Retardation. The utility of varied tests for personality diagnosis in these areas was indicated, either through evaluation of research on these tests and the handicapping condition or through noting certain unique features of specific tests which may be of help in diagnosis, though no research has yet appeared. A summary at the end of each handicapping condition indicates which tests seemed most promising for diagnosis.