The lined barb (Striuntius lineatus) is a species of cyprinid fish native to Malaysia and Indonesia where it can be found in swamps, standing waters with submerged grasses and blackwater rivers. This species can reach a length of . It can also be found in the aquarium trade.
The genus name Striuntius is a combination of parts of the Latin "striatus", meaning "striated" and the genus name Puntius. The specific epithet lineatus is Latin for "lined" referring to the color pattern of this fish.