Student's AbsenteeismStudents' absenteeism in Algerian universities seems to be a serious issue that many universities have witnessed todayswitness today. while attending some universitiesuniversity classes , it is observed that some students are absent from classes when they are expected to maintain a regular attendance in all modules. , forFor this reason, many universities have adopt aadopted new policies to reduce this problem .Consequdntly student's Absenteeism Consequently, students' absenteeism may affect their performaneperformance, especially their grades .therfore Therefore, in this research paper, we are interested in exploring student's Absenteeismstudents' absenteeism in relation to their grades. ,Moreover, we want to know if there is a positive or negative relationship between student'sstudents who do not attend their classes consistently and their final grades.