Perasaan aman dan nyaman berada di sekolah sangat dibutuhkan oleh setiap siswa untuk menunjang pengembangan potensinya. Fenomena yang terjadi terdapat beberapa siswa yang mengalami kekerasan di sekolah berupa perilaku bullying. Kemunculan perilaku ini dapat disebabkan oleh berbagai faktor, salah satunya yaitu kontrol diri. Penelitian bertujuan untuk mendeskripsikan kontrol diri dan perilaku bullying siswa, serta menguji hubungan kontrol diri dan perilaku bullying siswa. Penelitian ini merupakan penelitian deskriptif dan korelasional dengan subjek penelitian 47 siswa. Penelitian menggunakan instrumen angket yang disusun dengan meggunakan model skala likert. Data diolah dengan teknik statistik deskriptif dan untuk uji korelasi kedua variabel digunakan rumus product moment correlation. Hasil penelitian mengungkapkan terdapat hubungan yang signifikan antara kontrol diri dengan perilaku bullying siswa. Feelings of comfort and secure in the school is needed by every student to support the development of potentialities. The phenomenon that occurs there are some students who experienced violence in schools in the form of bullying behavior. The appearance of this behavior can be caused by various factors, one of which is self-control. The study aims to describe self-control and bullying behavior of students, as well as to examine the relationship of self-control and student bullying behavior. This research is a descriptive and correlational research with subject of research of 47 students. The research used questionnaire instrument that was prepared using Likert scale model. Data is processed by descriptive statistical techniques and for the correlation test of both variables used product moment correlation formula. The results revealed there was a significant relationship between student’s self-control and bullying behavior.