Background:Since nurses are the largest health care group and include more than any other group of hospital staffs, they affect the productivity and progress of the organization. Objectives:The aim of this study was to investigate the role of dark and light personality traits in predicting interpersonal problems, life and job satisfaction in nurses. Methods: The method was descriptive and correlational. The statistical population included 220 nurses working in Mashhad private hospitals in 2020. Data were analyzed using Pearson correlation and multivariate regression. Results:Results show that light and dark personality traits was significant on interpersonal problems, life and job satisfaction in nurses. Conclusions: Thus, it can be stated that light personality traits increase the feeling of satisfaction with the work environment by improving social relationships with colleagues and patients, so by increasing these personality traits, nurses can increase their job satisfaction

Nurses, Dark and Light Personality Traits, Life and Job Satisfaction, Interpersonal Problems