This study examined the relationships between university students' internet addiction and psychopathology in Turkey. The study was based on data drawn from a national survey of university students in Turkey. 174 university students completed the SCL-90-R scale and Addicted Internet Users Inventory. Results show that students who use internet six hours and more a day have psychiatric symptoms. Students whose addicted internet usage have psychiatric symptoms such as Somatization, Obsessive Compulsive, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation and psychoticism more than students whose nonaddictive internet usage. (Contains 2 tables.)