Myopathy chiefly affecting the proximal muscles of the limbs is frequently seen in hyperthyroidism. But isolated acute bulbar palsy without skeletal muscle involvement is rare in thyrotoxicosis. We report the case of a 52 year old man who presented with severe dysphagia, dysphonia and bouts of aspiration. Laboratory testing revealed an underlying Graves' thyrotoxicosis. His symptoms recovered dramatically within 6 weeks with treatment of hyperthyroidism. This case is reported to emphasize that thyrotoxicosis should be considered in the differential diagnosis of dysphagia of obscure etiology.