This study aims to analyze the dissertations about differentiated instruction in terms of their contents in Turkey. The data of the study was collected from Council of Higher Education National Thesis Center database. The dissertations were searched without any year limitation. As a result of searching, 19 dissertations were found. The data obtained from the thesis was analyzed with content analysis. The dissertations were analyzed in terms of the year they published and type of the dissertation, the field on which the studies were conducted, the purpose of the studies, the methods of the studies, data collection tools and research staff in the direction of the purpose of the researcher. The obtained data are indicated in tables considering their percentage and frequency values. As a result of the study, it was seen that the studies mostly focused on the individuals with superior intelligence. It was seen that the researchers used quantitative methods and focused on the academic success of the students. Moreover, it was determined that the studies about the subject were inadequate and there was no interest about the subject.