Thrasya is a genus of Neotropical plants in the grass family. Species * Soderstr. - Guyana * A.G.Burm. - Brazil * (Swallen) A.G.Burm. ex Judz. - Brazil, Suriname, Venezuela * (Hack.) Chase - Mexico (Puebla, Veracruz, Tabasco, Oaxaca, Chiapas), Central America, Colombia, Venezuela * Killeen - Bolivia * A.G.Burm. - Brazil * A.G.Burm. - Suriname * Chase - Costa Rica, Panamá, Venezuela * M.Bastos & A.G.Burm. - Brazil * Davidse & A.G.Burm. - Honduras, Nicaragua * A.G.Burm. - Minas Gerais * A.G.Burm. - Pará * Kunth - Brazil, Venezuela (Amazonas, Bolívar), La Mosquitia of Honduras, Trinidad & Tobago * (Trin.) Chase - Brazil * Hitchc. & Chase - Trinidad & Tobago, Venezuela, Suriname, Fr Guiana, Colombia, Costa Rica * (Tutin) Soderstr. ex A.G.Burm. - Suriname, Fr Gui