<p>The study of cyberbullying in post-secondary education is relatively new, because until recently it had not been thought to occur at university. This means that cyberbullying as a possible influential factor in university dropout has not been considered as an object of study, and only few studies have examined the relationship between the two phenomena. The present study examines some of the variables related to cyberbullying from an observer’s perspective that may influence and accelerate the dropout process. To clarify, students who witness cyberbullying, even if they are not directly involved, are also affected by the phenomenon in terms of their intention to drop out. A questionnaire was completed by 1640 first-year university students and descriptive analysis, Student’s t test and classification trees were performed using SPSS v.24. The study revealed notable gender-specific behaviors and differences, with males reporting a higher prevalence of both victimization and observation of cyberbullying behaviors. Additionally, a correlation was identified between cyberbullying and university dropout, indicating that students who perceived the presence of online impersonation of others with the intention of causing harm were more likely to cease their studies. The results give some clarity to both phenomena and explore how they are related with a view to creating intervention programs to prevent and alleviate them.</p>