The purpose of the present study is to present the diversities in high schools and opinions of teachers about management of these diversities. The sample of the study is from nine teachers working at the official high schools in the center of Denizli in Turkey. In this qualitative study, the data are collected with a semi-structured interview form and analyzed with content analysis. According to the results of the study, the diversities teachers encounter the most in their schools are branch and political view diversities. Teachers stated that the diversities can affect the students positively, create variety and abundance when managed well; but they may cause groupings and effect students negatively when they are not managed well. Most of the teachers mentioned positive manners of principals towards diversities.