Margarya is a genus of large operculate freshwater snails, aquatic gastropod molluscs in the family Viviparidae.

[1] Based on shell and radular morphology, Tchang & Tsi (1949) revised this genus for the first time and recognized seven distinct species.

[5] The first molecular phylogeny showed that the genus Margarya is polyphyletic and divided into three distinct clades.

[6] Combining study of comparative morphology and molecular phylogeny, Zhang et al. revised the systematics of Margarya and recognized eight genuine extant species.

The sister lineages of two of these clades are representatives from different viviparid genera, which are widely distributed in East and Southeast Asian rivers and lakes.