Gastrodiscoides is genus of zoonotic fluke under the class Trematoda. It has only one species, Gastrodiscoides hominis. It is a parasite of a variety of vertebrates including human. In fact the first definitive specimen was described from human subject in 1876. It is prevalent in Bangladesh, India, Burma, China, Kazakhstan, Philippines, Thailand, Vietnam, and Volga Delta in Russia; with isolated cases from Africa, such as Nigeria.