The aim of this study was to determine the opinions of social studies pre-service teachers regarding the professional competencies of teachers. The study was designed as a case study from qualitative research methods. Participants of the study consisted of 15 social studies pre-service teachers from a university located in the Western Black Sea. The data were collected using a semi-structured interview form with the interview technique. The data obtained in the study were analyzed by the descriptive analysis method. As a result of the study, pre-service teachers expect a teacher to have professional competencies such as having sufficient field knowledge, being equipped with professional skills, and having the attitudes and values required by the profession. It is important that the teacher plans and applies the teaching process and practices by considering individual differences, using different methods and techniques, using effective materials, and a process-oriented assessment and evaluation approach. Comprehensive teaching should be planned to have teachers with these competencies. Therefore, education faculties that train teachers and the Ministry of National Education (MEB) should work in cooperation. Programs to train qualified teachers should be prepared by considering the teacher competencies determined by the MEB. The process of acquiring teacher competencies is a broad and open field that cannot be limited to the undergraduate program. Therefore, the training of the teachers should be supported by in-service training and postgraduate programs.