Rectoris longifinus is a species of freshwater ray-finned fish belonging to the family Cyprinidae, the family which includes the carps, barbs.

minnows and related fishes.

This species is endemic to Yunnan in China.

[1] This species was fisrt formally described) in 2002 from Zhoxi in Shilin County and said to be similar to R. posehensis,[2] however, other authors consider that this species is unlikely to be a member of the genus Rectoris and that it is generic placement awaits further study.

[3] This Labeoninae article is a stub.