Thouinia mauritiana Bojer Hornea is a monotypic genus of flowering plants belonging to the family Sapindaceae.

[1] The only species is Hornea mauritiana.

[1] It is native to Mauritius.

[2] The genus name of Hornea is in honour of John Horne (1835–1905), a Scottish botanist,[3] and the Latin specific epithet of mauritiana means coming from Mauritius.

Both the species and the genus were first described and published in Fl.