Trigonostigma is a genus of small freshwater ray-finned fishes belonging to the family Danionidae.

The fishes in this genus are found in Southeast Asia.

These social, colorful freshwater fish are often kept in aquariums.

There are currently five recognized species in this genus:[1] (Meinken, 1967) (Meinken, 1956) (Duncker, 1904) (Meinken, 1958) (Tan, 2020)[2]

This article relating to Danioninae is a stub.