Holcosus quadrilineatus, also known commonly as the four-lined ameiva and the four-lined whiptail, is a species of lizard in the family Teiidae.

The species is endemic to Central America.

H. quadrilineatus is found in western Panama, Costa Rica, and southeastern Nicaragua.

[2] H. quadrilineatus is brown-coloured, with four light lines running down the back.

[3] H. quadrilineatus lives in open habitats.