Oreoleuciscus angusticephalus, the narrow-headed Altai osman, is a species of cyprinid in the genus Oreoleuciscus.

[1] It is endemic to Mongolia[1] and has a maximum length of 23.8 centimetres (9.4 in).

[1] Its young feed on plankton while adults feed predominantly on fish.

[1] category fish describedin 2001

This Cyprinidae-related article is a stub.