The aim of the study is to conduct a needs assessment study to determine research productivity needs of doctoral students. A mixed method approach and fully mixed con-current dominant status design is used in the current study. The participants of the study included doctoral students, professors, and deans of (graduate schools) at a university in Turkey from the various Social and Natural Sciences Departments so that the needs of doctoral students from different disciplines could be examined. 'Needs assessment questionnaires' were administered to 35 doctoral students, 35 professors, and 4 deans; interviews were conducted with 7 doctoral students, 4 professors and 4 deans to collect the data. Findings of the study showed that academic writing skills were the most frequently mentioned skill that the doctoral students need to improve for their research productivity. In interviews, needs of the participants divided into personal factors like interest and positive attitudes towards research, intrinsic motivation, critical thinking and writing skills, scientific method and foreign language knowledge; institutional factors like support of advisor/professors, taking part in collaborative and interdisciplinary studies, joining the research projects, accessing easily to resources, elimination of bureaucratic obstacles, and environmental factors like support of individuals in immediate surroundings of doctoral students.