Nine species of geckos from Sri Lanka were examined for helminths: Calodactylodes illingworthorum, Cnemaspis kandiana, Cnemaspis scalpensis, Cnemaspis tropidogaster, Gehyra mutilata, Hemidactylus parvimaculatus, Hemidactylus depressus, Hemidactylus frenatus, and Hemidactylus leschenaultii. Species found include 1 species of Digenea, Mesocoelium monas; 2 species of Cestoda, Cylindrotaenia philauti and Oochoristica paurensis; 8 species of Nematoda, Parapharyngodon maplestoni, Pharyngodon gekko, Pharyngodon oceanicus, Physaloperoides dactyluris, Skrjabinelazia hemidactyli, Spauligodon hemidactylus, Thamugadia hemidactyla, and Acuariidae gen sp. (larva in cysts); and 1 species of Acanthocephala, Acanthocephalus serendibensis. Mean number of helminth species per infected gecko was 1.3 ± 0.5 (range 1–3). Nineteen new hosts and 7 new locality records are reported.