Plotosus lineatus, commonly known as the striped eel catfish, is a species of eeltail catfishes belonging to the family Plotosidae. Like most other members of the genus Plotosus, they possesses highly venomous spines that they can use to sting when threatened. The venom can cause mild to severe symptoms in humans. P. lineatus is native to the Indo-Pacific but has become introduced to the Mediterranean via the Suez Canal as a Lessepsian migrant.

Plotosus is a genus of eeltail catfishes native to the Indian Ocean, the western Pacific Ocean and New Guinea.