Introduction: Nursing burnout is a syndrome, causing negative self image, negative attitude toward job and disrupted communication with the clients, could lead to a severe decline of healthcare qualities. Healthcare sectors are among the most important fields of stable development in any human society, which need healthy, enthused and motivated practitioners. Nursing staffs in private sectors encounter with numerous problems and job stress in their working environments which can result their burnout. The aim of present study was to identify the influential factors on burnout in nurses of private hospitals in Tehran.

Method: The study was carried out using a descriptive-analytic method. 505 nurses were participated in the study from different private hospitals in Tehran including Toos, Pastor no, Laleh, Tehran clinic and Kasra hospitals. Data were gathered through the questionnaires containing demographic information, scale of nursing burnout’s factors and Maslach nursing burnout. Data was analyzed using SPSS package.

Results: The participants reported their high emotional exhaustion (6.36%), high depersonalization (1.81%) and feeling low competent (23.63%). The most important factor contributing in nurses’ burnout in assessed private sectors was the inappropriateness between the income and the workload and its difficulties. Conclusion:

Considering the results and the importance of nursing job, attempts to reduce nurses’ problems such as financial, social and managerial problems is important. The authorities should support nurses by preparing an appropriate environmental, personnel and management conditions.