Mansoa is a genus of tropical, flowering vines in the family Bignoniaceae.

Its native range is Mexico to Tropical America, and it is found in Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Leeward Is., Mexico, Nicaragua, Panamá, Paraguay, Peru, Suriname, Trinidad-Tobago, Venezuela and Windward Is.

The genus name of Mansoa is in honour of Antônio Luiz Patrício da Silva Manso (1788–1848), a Brazilian botanist, physician, and politician. It was first described and published in Biblioth.