Abstract This study aims to determine student responses to the application of the situation based learning model with peer tutors. The method used in this research is descriptive qualitative method, with data sources consisting of primary data sources and secondary data. The research subjects consisted of 29 students. The research instrument was in the form of observation sheets and student response questionnaires consisting of 4 indicators containing 20 statements. The data analysis technique was carried out through the stages of data reduction, data presentation, and drawing conclusions. Based on the results of the study, it was found that the application of the situation based learning model with peer tutors was carried out very well and overall received a positive response from students. Students gave positive responses to indicators of interest in mathematics, interest in learning mathematics using a situation based learning model with peer tutors, and the benefits of participating in mathematics learning using a situation based learning model with peer tutors. A very positive response was given by students on the indicators of the benefits of mathematics lessons. Keywords students’ response, situation based learning, peer tutor. Abstrak Penelitian ini bertujuan untuk mengetahui respon siswa terhadap penerapan model situation based learning dengan tutor sebaya. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kualitatif, dengan sumber data terdiri dari sumber data primer dan data skunder. Subjek penelitian terdiri dari 29 siswa. Instrumen penelitian berupa lembar observasi dan angket respon siswa yang terdiri dari 4 indikator yang memuat 20 pernyataan. Teknik analisis data dilakukan melalui tahapan reduksi data, penyajian data, dan penarikan kesimpulan. Berdasarkan hasil penelitian diketahui bahwa penerapan penerapan model situation based learning dengan tutor sebaya terlaksana dengan sangat baik dan secara keseluruhan mendapatkan respon yang positif dari siswa. Siswa memberikan respon positif pada indikator minat terhadap pelajaran matematika, minat terhadap pembelajaran matematika menggunakan model situation based learning dengan tutor sebaya, serta manfaat mengikuti pembelajaran matematika menggunakan model situation based learning dengan tutor sebaya. Respon sangat positif diberikan siswa pada indikator manfaat pelajaran matematika. Kata kunci respon siswa, pembelajaran berbasis situasi, tutor sebaya.DOI: http://dx.doi.org/10.23960/jpmipa/v23i3.pp1205-1213