Caesio varilineata, the variable-lined fusilier or thin-lined fusilier, is a species of pelagic marine ray-finned fish, a fusilier belonging to the family Caesionidae. It is found in the Indo-Pacific region. Caesio varilineata is only found in the Indian Ocean from western Indonesia to the eastern coast of Africa, Red Sea and Persian Gulf included. It lives in the open water close to reef and the external reefs.