The beardless barb (Cyclocheilichthys apogon) is a species of freshwater fish in the family Cyprinidae.

[3] A study from Borneo found that 8.1 cm (3.2 in) standard length was reached at the age of two years.

[4] Beardless barb inhabits a range of freshwater environments: rivers, lowland swamps, marshlands (in flooding time), lakes, and reservoirs.

It is a migratory species that enters flooded areas during the high-water season.

[1][3] The species is found in the Mainland Southeast Asia (Myanmar, Thailand, Cambodia, Laos, Vietnam, Malaysia), including the Mekong and Chao Phraya basins, and in the Maritime Southeast Asia (Singapore, Malaysia, Indonesia), including the islands of Sumatra and Borneo.