The predictive ability of personal intelligence (PI), the ability to understand and apply personality-related information, was examined in relation to the workplace and social relationships. We predicted that two measures of PI, an objective test, the mini (12 item) test of personal intelligence (TOPI), and a self-estimated test, the self-estimated personal intelligence scale (SEPI), would relate to job satisfaction, indicators of leadership, positive organizational workplace behavior, and social support. Vocabulary tests and the backwards digit span served as traditional intelligence measures. Several measures of workplace behavior and social support were administered. Participants were 378 adults who worked full-time in the U.S. PI was related to some workplace related characteristics, especially the absence of deviant behaviors, as well as social support in general. PI was associated with workplace behaviors and social outcomes above and beyond traditional measures of intelligence, supporting PI’s usefulness as a novel form of intelligence. However, the study was limited by the low variance/reliability of the TOPI scores relative to the SEPI. Future research should use the longer TOPI version or redevelop the mini TOPI. The study findings suggest that understanding personality may relate to some positive workplace characteristics and support healthy relationships.Bachelor of Scienc