Gaya is a genus of flowering plants belonging to the family Malvaceae.

[3] It is native to Tropical America with its greatest diversity in Brazil (up to 14 species).

It is also found in the countries of Argentina, Bolivia, Colombia, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Leeward Is., Mexico, Nicaragua, Paraguay, Peru, Uruguay and Venezuela.

[2] Shrubs or herbs, with toothed leaves, flowers either yellowish or purplish, mainly solitary in the axils, sometimes racemose, with 8 carpels or more, membranaceous, bi-valvate and one seeded.

[4] The genus name of Gaya is in honour of Jaques Étienne Gay (1786–1864), a Swiss-French botanist, civil servant, collector and taxonomist.