Sewellia marmorata is a species in the Sewellia genus.

The fish is highly territorial and is only found in Vietnam.

[2] The fish maximum length is 6.4 cm (2.5 in) long (SL).

[3] The fish is classified as an endangered species by the IUCN under criteria A2c; B1ab(i,ii,iii).

This Cypriniformes-related article is a stub.