Retirement is one of the important events in the elderly that can affect the one’, s quality of life. Consequently, The aim of the current study was to investigate the role of personality traits, coping strategies and religious attitudes in predicting quality of life in retireds. The study was of descriptive-correlational type. The statistical population included all the retireds of Nahavand, Iran among whom 200 were selected through random sampling. Study tools consisted of NEO Five Factor Inventory (NEO-FFI), Coping Inventory for Stressful Situations (CISS), Religious Attitude Scale (RAS) and WHO Quality of Life (WHOQOL-26). Data were analyzed through Pearson’, s correlation coefficient and enter multiple regression. The results indicated that there were relationship between Big Five personality traits (except for openness) and quality of life as such, neuroticism had a negative significant correlation with quality of life and extraversion, and agreeableness and conscientiousness had positive significant correlation with quality of life. There was no significant relationship between religious attitudes and quality of life. The problem focused coping strategy had a positive significant, the emotional focused coping strategy had a negative insignificant, and the avoidance coping strategy had a positive medium relationship (0. 30, p<0. 01) with the quality of life. The results of multiple regression also showed that personality traits, coping strategies and religious attitudes could predict 43% of variance of the quality of life. Based on the aforemebtioned results, it could be said that the improvement of the quality of life are impressed by personality traits and coping strategies that people apply when they encounter stress.