The aim of this study was to investigate the leisure constraints perceived by the university students according to the level of smartphone addiction. In the study, in order to determine the constraints faced by the participants Leisure Constraints Scale developed by Alexandris and Carroll (1997), adapted to Turkish by Gürbüz, Öncü, and Emir (2012) and in order to determine the level of smartphone addiction, Smartphone Addiction Scale developed by Kwon et al. (2013) and adapted to Turkish by Noyan et al. (2015), was used. Conventional sampling method was preferred for sample selection and face-to-face survey method was used for data collection. In the analysis of the obtained data, descriptive statistics, Independent Sample t-test, One-way ANOVA, Chi-square, Hierarchical and non-hierarchical clustering analysis were used. A total of 1298 volunteers participated in the study: 676 males (52.1%) and 622 females (47.9%). According to the results of the study, it was determined that there was a statistically significant difference in the subscales of leisure constraints in terms of individual psychology, lack of knowledge, lack of friends, lack of time and interest according to smartphone addiction levels. As a result; It was determined that the high-level smartphones addicted students perceived a high level of leisure constraints than the university students who had a low level of addictions.