Opsariichthys is a genus of freshwater ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies found in freshwater habitats in Mainland China (including Hainan), Taiwan, Japan, Korea, and Vietnam.
These are the species, some with uncertain status:
The status of Opsariichthys bea and Opsariichthys hieni are uncertain; the former might belong to the genus Parazacco and the latter to Rasbora.