The aim of the study is to determine whether there are mobbing applications at schools and if so, at which level and between whom. The Mobbing Perception Scale is applied, based on Leymann's (1993), "Mobbing Typology," and developed by Yavuz (2007), to 154 teachers at 5 selected schools in Ankara for the purpose of the study. According to the teachers' perceptions obtained from the questionnaire, the findings indicate that there is mobbing at the schools at a high level, that mobbing is mostly made by the administrative personnel, and that mobbing is additionally created by parents against teachers. An additional important finding is that the male teachers are subjected to mobbing as much as the female teachers. Also, the working conditions and working environment are found to be the source of mobbing. Suggestions are made to the applicants and researchers in the light of the data obtained in the research.