The purpose of this study is to examine the relationship between workaholism and personality traits among managers. A questionnaire consists of 141 items is developed with standard measures and 145 questionnaires are distributed among the managers and 113 ones are gathered where final response rate is 78% after removing two useless questionnaires. Cranach & apos; s alphas is reported greater than 0.70, which shows the reliability of the subscales of the questionnaire. To test the hypotheses, different statistical techniques including one sample t test, analysis of variance (ANOVA), and correlation are implemented. Findings of the study show that demographical variables do not affect workaholism among managers in public organizations. In addition, among the personality variables, a significant relationship is detected between introversion and dominance with workaholism.