This study aims to find out the Islamic culture at MTsN 4 Bantul and to identify the role of the teachers in inculcating the Islamic culture among the students. This research is focused on the teachers at MTs 4 Bantul. This research is a case study that employs descriptive qualitative method to study thoroughly a particular case found in society. The data are collected through observation, interviews and documentation. These collected data then analyzed using triangulation techniques. The results of this study indicate that: 1) Islamic culture at MTs 4 Bantul are grouped into four categories. The first is daily activities including smiling, greeting with Islamic greetings (salam), shaking hands, praying before and after learning, positive thinking, performing prayers and dhikr in congregation, dhuha prayer, midday prayer and ashar and “one day one verse”. The second is weekly activities which include infaq (giving charity) on Friday, performing Friday prayers in congregation, adiwiyata. The third, monthly activities which includes monthly gathering to study about Islam with the teachers, class members, and parents. The fourth is annual activities that includes participating in the commemoration of Islamic holidays (PHBI) such as Eid al-Adha, qurban, and joining Islamic boarding schools. 2) the role of the teacher in the cultivation of Islamic culture at MTsN 4 Bantul is very important because the teachers do not only a teach the students but also replace the role of the students’ parents. The teachers strives to carry out religious activities continuously as an effort to inculcate Islamic culture among their students.