We report a case of calcified endobronchial leiomyoma in the left main bronchus. Leiomyoma of the airways is a rare benign tumour, usually described as a solitary lesion and located in the membranous portion of the lower third of the trachea and rarely in the bronchi. Chest CT showed a well-defined, calcified, polypoid endobronchial mass with a broad stalk in the left main bronchus.