红蝴蝶（学名：Caesalpinia pulcherrima），又名番蝴蝶、洋金凤、黄蝴蝶，为豆科苏木属下的一个种。

Caesalpinia pulcherrima is a species of flowering plant in the pea family, Fabaceae, that is native to the tropics and subtropics of the Americas. It could be native to the West Indies, but its exact origin is unknown due to widespread cultivation. Common names for this species include Poinciana, Peacock Flower, Red Bird of Paradise, Mexican Bird of Paradise, Dwarf Poinciana, Pride of Barbados, and flamboyant-de-jardin. The Hawaiian name for this plant is ʻOhai Aliʻi.