Objectives: The general goal of the paper is to express opinions of primary school students Bartol Kašić on online violence. In addition, to research the demographic characteristics of respondents, explore their time spent on the Internet and social networks as well as their knowledge and experience with online violence. Further, to analyse opinions about the Internet, social networks and online harassment, inquire the perception of respondents about the concept of virtual abuse and explore the link between the demographic characteristics of respondents and their opinion, perception and knowledge about virtual abuse. Study design: cross-sectional study. Participants and methods: The questionnaire was conducted at Bartol Kašić Elementary School in Jarun, Zagreb, amongst seventh graders who voluntarily agreed to participate. The research method administered questions consisting of sociodemographic data as well as of questions on cyberbullying. The questionnaire consisted of 21 questions. Results: The study found that there is no gender gap in cyberbullying.. The data shown by the study is that there is a very big difference in students’ opinions about how often online violence happens. Female respondents believe that online violence occurs often while male respondents believe that it happens often but not on a daily basis. Each student replied that they had either met someone who experienced online violence or had experienced online violence themselves. Conclusion: Research has shown that students are increasingly encountering cyberbullying. In this study the participants made it clear that teachers should talk about online violence more and spend more time educating their students on the subject. The global problem is that young people are unaware of the danger of exposure to the Internet.