Religious beliefs of individuals affect their attitudes and behaviours regarding organ donation. The aim of this study is to determine the knowledge, attitudes, behaviours of Theology faculty students about organ donation. The study is cross-sectional study which carried out on students in Faculty of Theology. Sample selection was not performed in this study. The first part of the questionnaires, which we created as data collection tools, comprised socio-demographic questions, whereas the second part comprised questions, prepared according to the literature that measures the knowledge, attitudes and behaviours on organ donation. Chi-Square test was used for statistical analysis. 0.7% of the students participating in the study stated that they were organ donors, whereas 56.4% said that they considered organ donation as religiously appropriate behaviour, and 38.6% said that they have not become organ donors before because the subject of organ donation was not brought to their attention previously. A comparison of whether the students viewed organ donation as religiously appropriate behaviour with the students' level of knowledge on organ donation revealed to be 65.8% among students with knowledge on organ donation and 49.5% among students who lacked knowledge on organ donation (p=0.001). Students with knowledge on organ donation also said that they viewed organ donation as religiously appropriate behaviour. Through training activities, the aim should be to increase the level of knowledge and awareness on organ donation of future religious staff and to thereby increase the level of organ donation in the society.