The present study aims to identify the helminth fauna of Spheniscus magellanicus Foster, 1781 from themunicipality of Ilha Comprida, southern São Paulo State. A total of 28 individuals were analyzed,resulting in an identification of three helminth species: Contracaecum pelagicum Johnston &Mawson, 1942, Cardiocephaloides physalis Sudarikov, 1959 and Tetrabotrium lutzi Parona, 1901.Contracaecum pelagicum and C. physalis were core species, while T. lutzi was considered a satellitespecies. All individuals examined were infected with at least one species (overall prevalence = 100%).The host specimens were all juveniles and the infection may be associated with food items eaten duringmigration to the Brazilian Coast.