Mieniplotia is a genus of freshwater snails in the family Thiaridae. It is monotypic, the sole species being Mieniplotia scabra <small>(O. F. Müller, 1774)</small>.
Mieniplotia scabra is coastal freshwater species that can also occur in brackish water. It occurs from the east coast of Africa to the south Pacific; it is considered invasive in parts of its range.
Mieniplotia scabra has a rather small, somewhat ovoid-conical shell measuring .