AbstractIn this study, three parasitic copepods from three different :fish species, were reported for the first time in Turkish Coasts: Lernanthropus trachuri Brian, 1903 on gills of the horse mackerel (Trachurus mediterraneus Steindachner, 1868), Neobrachiella impudica (Nordmann,1832) on gills of the gumard (Trigla lucerna Linne, 1758), Chondracanthus lophii Johnston, 1836 on gill cavity of the angler fish (Lophius piscatorius Linne, 1758), Besides, Mugil soiuy is identified as a new host for Ergasilus nanus van Beneden,1871 in Turkish Coasts.