It was examined in this study whether organizational citizenship behaviours of primary school teachers predict the level of their burnout. Correlation and multi regression analysis were used for this. Survey model was used in this descriptive study. Data were collected from 1699 primary school teachers working in Mersin. Maslach Burnout Inventory and Organizational Citizenship Scale were used in the study. It is seen that teachers' behaviours of organizational citizenship effect their burnout at a low level and these two variables are in a negative relation. Almost all dimensions of organizational citizenship behaviours that teachers show by adopting the work environment and caring about colleagues have effect on their burnout level. Considering the teachers with burnout indications have negative influences on both themselves and their students, positive work conditions resulting from teachers' behaviours of organizational citizenship will contribute to school staff and students positively. In this respect, increasing organizational citizenship can be seen as an element decreasing burnout of employees.