Rupture of the thyroid gland is uncommon in cases of blunt neck trauma. We report a case of thyroid rupture after a motor vehicle accident in a patient without a preexisting goiter. He presented with a painful anterior neck swelling associated with dysphagia and hoarseness of voice. Computed tomographic scans showed lacerations of the right thyroid lobe and isthmus with features suggestive of slow active bleeding. Neck exploration was subsequently performed, and a ruptured right thyroid lobe was found with ongoing venous hemorrhage. A right hemithyroidectomy was performed, and the patient recovered without complications.