Abstract-The main aim of this study is to determine the relationship between mobbing incurred by preschool teachers and their burnout level. The sample of the study is consisted of preschool teahers who work in pre-schools and nursery classes in the province of Mardin, Turkey. The study was conducted on 396 Pre-school teachers working in different schools which give preschool education. The data was collected by using the scales of "Negative Acts Questionnaires" (NAQ) [1,2]. and "Burnout Inventory" [3,4]. To analyze the data frequency, percentage, mean, correlation analysis and multiple regression analysis techniques were used. According to research findings; it was concluded that mobbing incurred by preschool teachers is positively associated with their burnout level. Additionally, considering multiple regression analysis, mobbing is a significant predictor of burnout level of teachers.