Gouramis or gouramies are a group of freshwater perciform fishes that comprise the family, Osphronemidae. The fish are native to Asia, from Pakistan and India to the Malay Archipelago and north-easterly towards Korea. The name "gourami", of Javanese origin, is also used for fish of the families Helostomatidae and Anabantidae. "Gouramis" is an example of a redundant plural. Gourami is already plural in its original language.
Many gouramis have an elongated, feeler-like ray at the front of each of their pelvic fins. Many species show parental care: some are mouthbrooders, and others, like the Siamese fighting fish (Betta splendens), build bubble nests. Currently, about 90 species are recognised, placed in four subfamilies and about 15 genera.
The name Polyacanthidae has also been used for this family. Some fish now classified as gouramis were previously placed in family Anabantidae. The subfamily Belontiinae was recently demoted from the family Belontiidae. As labyrinth fishes, 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.