Auxopus is a genera of the family Orchidaceae. This genus belongs to the tribe Gastrodieae and subtribe Gastrodiinae. There is little known about the flower structure of members of the Gastrodieae tribe. This group is saprophytic, except for the genus Nervilia. As members of the Gastrodiinae subtribe, Auxopus are leafless and contain inflorescences of flowers with their sepals and petals united. Auxopus has 4 known species, native to tropical Africa and Madagascar.