This study explores the relationship between digital addiction and online learning readiness levels of the university students. For this, the predictive correlation research model was used. The sample of the study consisted of 856 university students studying at three different universities in Türkiye. The "Digital Addiction Scale" and the "Online Learning Readiness Scale" were used as data collection tools. The data collection process of the study lasted approximately one month. In the study, besides descriptive statistics such as mean, standard deviation, minimum and maximum, independent sample T-test, Pearson correlation analysis and simple linear regression analysis were used. It was concluded that university students' digital addiction (DA) levels were at moderate level, and online learning readiness (OLR) levels were at high level. It was determined that DA levels of male students were higher than female students. It was also revealed that OLR levels of the students differed significantly according to gender variable. The findings also indicated that there was a negative, low-level significant relationship between the students' DA and OLR levels. Additionally, the students' DA level was found to explain 2.3% of the variance in their OLR.