The study aims to determine the suicide risk and depression in individuals diagnosed with chronic illnesses. The sample of the study comprised of 286 persons. The Information Form developed by the researchers on the basis of the models available in previous research, Suicide Probability Scale (SPS) and Beck Depression Scale (BDS) were used to collect data. Mann Whitney U-test, Kruskal Wallis test and Pearson correlation analysis were used to evaluate the study data. The mean score of the individuals participating in the study with reference to Suicide Probability Scale were found to be 68.80 +/- 9.94 and that with reference to Beck Depression Scale 15.68 +/- 9.91. Also, a significant positive relationship was found between the mean scores regarding SPS and BDS scales (r: 0.601, p: 0.000<0.05). The SPS and BDS mean scores of individuals who said they had poor mental health, low quality of life and low economic status and that of those who had no support from their families were found to be high in respect of statistical significance. In accordance with these findings, chronic illness is a risk factor that might induce depression and suicide ideation and attempt. According to the statistical analysis, the results of this study shown that people with poor mental health, poor quality of life and low economic status and those who had no support from their families especially had more vulnerable to depression and suicidal behaviours compared with other people.