Anabarilius transmontanus is a species of cyprinid fish. It is known from the Red River and Pearl River drainages in Yunnan, China; it is expected to occur in northern Vietnam. It can grow to 16cm (06inches) total length, although it is commonly around 10cm (00inches) standard length. It occurs in both rivers and lakes. The species is threatened by domestic and urban water pollution, habitat loss, and possibly non-native species.