Laryngomalacia is the most common paediatric airway problem presenting as stridor in the neonate. This congenital anomaly is thought to be caused by inward inspiratory collapse of the supraglottic larynx due to a prolapsed, tall and tubular epiglottis with flaccid aryepiglottic folds. The natural history of this condition usually results in spontaneous resolution by the second year of life. Although acquired cases of adult laryngomalacia have been reported, a search of the literature has yet to show any cases of idiopathic laryngomalacia. We present two cases of idiopathic acquired laryngomalacia in adults.