Social media has emerged as a widely used tool in the communication age. This new virtual world, where individuals freely share their views and express themselves, is also used for many different purposes including personal, corporate, and public usages. Because of using social media, social relationships established in the past and face-to-face relationships until today have been replaced by newly established virtual relationships. This new digital world also allows individuals to easily exhibit rude and aggressive behaviors that they do not demonstrate in daily life. The correlation between social media addiction and aggression can be widely seen worldwide and in our country. Depression, being anti-social, social media addiction, which we can call mental erosion which usually occurs with social media addiction. The data of the study were collected by a questionnaire form from 296 individuals residing in Çorum. While the scale created in Şahin and Yağcı (2017) study was used as the social media addiction scale, the scale created in the Buss and Perry (1992) study was used to measure the aggression attitude. As a result of the study, while the social media addiction level of the participants varies according to their education level and online shopping status, however, it does not change according to gender and working status. While the level of aggression varied according to gender, it did not differ according to employment status, education level, and online shopping status. In addition, there is a linear moderate positive relationship between social media addiction and aggression score. Finally, in this study a statistically significant difference was found in the duration of social media use, the number of shares, and aggression score according to gender. Implications are provided related to social media addiction and aggression for future research. [ABSTRACT FROM AUTHOR]