Gouramis or gouramies are a group of freshwater perciform fish that comprise the family, Osphronemidae. Gouramis are native to Asia, from Pakistan and India to the Malav Archipelago and north-easterly towards Korea. The name "gourami", of Japanese origin, is also used for fish of the families Helostomatidae and anabantidae.
Many Gouramis have an elongated, feeler-like ray at the front of each of their pelvic fins. Many species of Gouramis show parental care: some are mouthbrooders, and others, like the Siamese fighting fish (Betta splendens), build bubble nests. Currently, about 133 species are recognized, placed in four subfamilies and about 15 genera.
The name Polyacanthidae has also been used for this family. As labyrinth fish, gouramis have a lung-like labyrinth organ that allows them to gulp air and use atmospheric oxygen. This organ is a vital innovation for fishes that often inhabit warm, shallow, oxygen-poor water.