Six species of lice (Phthiraptera: Philopteridae, Menoponidae) were collected from four marine bird species belonging to the family Laridae from the Chilean coast. Saemundssonia sternae (Linnaeus,1758) and Quadraceps sellatus (Burmeister,1838) collected from the boreal sea gull (Sterna hirundo, Linnaeus,1758), Saemundssonia lari (O, fabricius, 1780), Quadraceps punctatus (Burmeister, 1838) and Q. ornatus (Grube,1851) found on the Dominican sea gull (Larus dominicanus, Lichtenstein, 1832); Q, punctatus collected from garuma sea gull (L. modestus, Tschudi, 1843) and S. lari and Actornithophilus piceus lari (Packard,1870) found on Franklin sea gull (L. pipixcan, Wagler,1831). All these species of Phthiraptera are first reports in Chile