Being one of the basic concepts of the psychology of religion, religiosity has been the subject of many studies from past to present. The recent increase in the number of studies on religiosity can be seen as an indication that religiosity will continue to remain popular in the future. When studies on religiosity are examined, it is seen that the relationship between the concept of religiosity and various variables is examined. One of these variables is gender. In studies examining religiosity in the context of gender, there are different findings as to whether women or men are more religious. Findings can be grouped and evaluated in three groups. In the first group, there are studies in which women are more religious than men, in the second group, men are more religious than women, and in the third group there is no gender difference. These different findings in the studies make it difficult to reach a final conclusion. Meta-analysis studies known as statistical analysis (Glass, 1976, s. 3), which are made to combine the findings from many individual studies, have an important function in such cases. Meta-analysis studies are an important method in terms of their function to combine many research results in a meaningful way and to reinterpret the results. In this context, the purpose of the research, based on graduate theses held in Turkey, is to determine how gender has an impact on religiosity and to determine whether the difference in gender is in favor of women or men by analysis. For this purpose, the database of the Higher Education Council National Thesis Center was scanned. While screening, "religiosity", "religious belief", "religious orientation", "religious motivation" and "religious attitude" and their Turkish equivalents "dindarlik", "dini inanc", "dini yonelim", "dini motivasyon" and " "dini tutum" keywords were used. The last screening was done on February 24, 2020. As a result of the searches, 1790 graduate theses containing the keywords were reached. The 1790 theses reached were examined, and 1620 theses that were limited or did not contain data suitable for meta-analysis were eliminated. It was decided to conduct a meta-analysis with 168 studies containing appropriate data. However, since there were two different data in 9 of the studies, each data was evaluated as a separate study and included in the study by coding as a and b. Thus, the number of studies to be meta-analyzed was 177. 131 of the studies are master thesis, 36 are doctorate thesis and one is specialty in medicine thesis. It was observed that the theses included in the study were prepared between 1986 and 2020. The research sample consists of 83460 people, 42494 women (50.9%), 40 966 men (49.1%).