Abstract Objectives: Life satisfaction refers to a cognitive process and is defined.This study was carried out to determine the effects of risky health behaviors of university students on life satisfaction. Material and Methods: This study was designed as a descriptive study. The research was carried out with 336 students who were studying in 9 departments at Dokuz Eylul University in the 2019-2020 academic year. Regression analysis was used to investigate the correlation between students\' risky health behavior sub-dimension (nutrition, psychosocial, physical activity, hygiene, and substance use) scores and SWLS scores. Results: 91.1% of the participants were in the 18-21 age range, 5.4% in the 22-25 age range, and 3.6% in the 26-30 age range. 74.1% of the students were female and 25.9% were male. The total score average of the SWLS was 13.28 4.45 (53.12 %). The total score average of RHBS was 45.57 � 15.81. There was a statistically significant relationship between life satisfaction scores and nutrition and psychosocial subscale risk scores. This correlation was moderate and negative (r = -.527, r = -. 524, p <.001). Also, there was a significant relationship between risky health behavior score and life satisfaction score. This correlation was moderate and negative (r = -.632, p<.001). Conclusion: The findings of this study show that as the risky health behaviors of the students increase, their satisfaction with life decreases. It is important to determine risky health behaviors and to turn these behaviors into healthy behaviors in order to increase levels of satisfaction with life. Keywords: Public health; Life satisfaction; Risky health behavior; Psychosocial risk.