Suicide, responsible for nearly one million deaths annually, is recognized by the World Health Organization (WHO) as a major public health problem. Epidemiological data indicate that suicidal behaviors are particularly prevalent among individuals aged 15-29, a developmental period characterized by identity exploration, social conflict, and emotional instability. In line with international data, Turkish statistics show that suicide rates are highest among individuals aged 15-34, corresponding to late adolescence and emerging adulthood. University students constitute a particularly vulnerable group facing intense academic, social, and economic stressors, and recent reports indicate an increase in suicide attempts among those living in dormitories, suggesting that dormitory environments may present additional psychosocial risk factors. This study aims to examine the extent to which perceived social support, social problem-solving, and alcohol-substance use predict suicide risk among university students, considering differences in accommodation type (living at home vs. in dormitory). Ethical approval for the study has been obtained, and data collection will begin in December 2025. The planned sample will consist of approximately 580 Turkish university students aged 18-29. Data will be collected using self-report questionnaires, including a Demographic Information Form, the Multidimensional Scale of Perceived Social Support, the Social Problem-Solving Inventory, the BAPI Risk Screening Scale, and the Suicide Probability Scale. Statistical analyses (correlation, independent samples t-test, one-way ANOVA, and hierarchical regression) will be conducted after data collection is completed. The study is expected to reveal that low perceived social support, ineffective problem-solving, and higher levels of alcohol-substance use significantly predict higher suicide risk, with potential moderating effects of living conditions. Findings will be discussed in light of current literature, emphasizing implications for suicide prevention and mental health promotion among young adults.