Objective: To identify emotion-associated risk factors for suicidality in patients with somatoform disorders. Methods: A sample of 155 consecutive patients diagnosed with somatoform disorders at the Psychosomatic Ambulance of Bonn University Hospital filled in several questionnaires including the Symptom Checklist 90 Revised Version (SCL-90-R), the Toronto Alexithymia Scale (TAS-20), and the State Trait Anger Expression Inventory (STAXI). Our aim was to compare patients with suicide attempts to patients without suicide attempts via a MANCOVA (IV: Group; DV: SCL-90-R, TAS-20, STAXI; covariates: sex, age, depression, borderline personality disorder). Results: Lifetime suicide attempts were documented in 20 patients (12.9%), current active suicidal ideation in 33.6%, and thoughts of death or dying in 55.9%. Patients with lifetime suicide attempts showed significantly more psychological distress, a significantly higher alexithymia sum score, a significantly higher score on trait anger, state anger, and a stronger tendency to express anger. Conclusion: Somatoform disorder patients with lifetime suicide attempts might have greater difficulties in identifying and describing emotions, and a tendency to intensely experience and express anger. Future longitudinal studies should further investigate possible links between difficulties in coping with anger and suicidality to improve prophylaxis and treatment of suicidal behaviour in somatoform disorder patients.