During a period of 33 years, 41 patients with primary carcinoma of the trachea were treated at Memorial and James Ewing Hospitals. Thirty of these patients had epidermoid carcinoma, 7 had adenoid cystic carcinoma, and 4 had mucus‐secreting adenocarcinoma. In view of the cryptic symptomatology, tracheal carcinoma must be considered in the differential diagnosis in patients with chronic cough, hemoptysis, and negative chest roentgenogram. The prognosis of tracheal carcinoma appears to depend mainly upon size and histologic type of the primary tumor. The prognosis of epidermoid and mucus‐secreting adenocarcinoma appears to be grave. Less than 25 percent of the patients with epidermoid carcinoma survived one year or longer. Adenoid cystic carcinoma carried a much better prognosis, however. These tumors have a slow and insidious course, usually recur, and metastasize several years after initial treatment. Small tracheal tumors can be treated either by endoscopic excision or partial resection of the trachea. In the case of extensive localized disease, the combination of surgery and irradiation is the treatment of choice.