Objective: The aims of this study were to test the psychometric properties of the Kessler 10 (K10) in a clinical setting and to investigate the utility of the K10 as a means for identifying suicidality. Methods: One hundred forty-nine inpatients at an inpatient psychiatric hospital completed a battery of assessments during their inpatient hospital stay. Factor analysis provided information suggesting multiple factor loadings present within the K10. A series of t tests examined differences of group means between suicidal participants and a control group, whereas multiple regression models examined the correlation between the K10 and several suicide-specific assessments. Main Results: The K10 seems to be composed of 2 primary factors (depression and anxiety) and differentiated suicidal and nonsuicidal inpatients and was associated with several measures related to suicidality. Conclusions: The observed results indicate that the K10 may be an effective screener to measure occult suicidality in a clinical setting.