The aim of this study is to determine moral decision making attitudes of youth athletes and sportspersonship behavior levels of their coaches; and to test them in terms of certain variables. The study is in a descriptive research model; the sample group consists of 294 certified athletes playing in youth sports teams; the ages range between 11 and 17. As measurement, "Attitudes to Moral Decision-Making in Youth Sport Questionnaire-2 (AMDYSQ-2)" and "Sportspersonship Coaching Behaviors Scale (SCBS)" were used. In order to test whether the data meet the prerequisite for multivariable tests, Skewness and Kurtosis values and Levene and Box M values were investigated. In the analysis of data, descriptive statistics methods, MANOVA, ANOVA and Pearson Correlation analysis were used. In order to determine the reliability of scales, their Cronbach Alpha internal consistency coefficients were calculated. MANOVA results show that AMDYSQ-2 has a significant impact on all independent variables whereas SCBS has a significant impact on "gender" and "branch involvement duration" variables. According to the correlation results, there is a positive and low-level significant correlation between "acceptance of cheating" and "keep winning in proportion" factors of SCBS and "setting expectations for good sportspersonship", "teaching good sportspersonship", "reinforcing sportspersonship", "prioritizing winning over good sportspersonship" and "modeling good sportspersonship" factors of AMDYSQ-2. As a result, it is concluded that for the athletes, "acceptance of cheating" factor of AMDYSQ-2 and "setting expectations for good sportspersonship" factor of SCBS are the most important factors.