This study investigated the relationship between conflict management and organizational performance in Nigeria using the descriptive survey design. The dependent variable is organizational performance (proxied as service quality and productivity) and independent variable is conflict management. Questionnaire was administered to six hundred(600) respondents out of which five hundred and forty-four (544) were fully retrieved and completed. Data obtained were analyzed using both descriptive (mean, minimum and maximum values, standard deviation, and Pearson correlation) and inferential (variance inflation factor and Lawley correlation) statistical tools. Findings of the study revealed that when conflict is adequately managed, it would result to increased organizational performance, particularly in areas of service quality and productivity. On the basis of the findings, it was recommended that management of organizations should strive towards conflict management by ensuring employees have the right skills and are willing to accept authority and clarity of chain of command. More so, management of organization need to ensure elaborate job description and incessant interaction between organizations management and employees in order to promote organizational performance in Nigeria.