The objectives of this study were to investigate the prevalence of cheating behavior inrnMaths learning among 9'h graders and factors predicting this behavior ( i.e. , masteryrngoal, performance approach goal. peljormance avoidance goal, gender and age). Arntotal of 393 9''' graders (198 males and 195 females) were randomly selected from sixrngovemment schools of Addis Ababa as subjects. Data were collected usingrnquestionnaires. One sample t-test was employed to determine the prevalence of cheatingrnbehavior. Moreover, regression analysis was also employed to determine predictors ofrncheating behavior. The one sample t-test result indicated that there is less prevalence ofrncheating behavior in Maths. It was also found that mastery orientation negativelyrnpredicted cheating behavior whereas performance avoidance orientation positivelyrnpredicted cheating behavior. Sex. age. and pelfonnance approach goal did not predictrncheating behavior significantly. Recommendations to promote mastery orientation andrnreduce peiformance avoidance orientation of the students were forwa rded.