Cyathea delgadii is a widespread species of tree fern. It is native to Central America (Costa Rica, Nicaragua and Panama), and much of South America (Colombia, Guyana, Venezuela, Bolivia, Ecuador, Peru, Brazil, including Trindade, Argentina and Paraguay). The specific epithet delgadii refers to Gancho do Generale Delgado, along the road to Caldas Novas, Brazil, where the type material was collected.