In this study, 5 fish species caught from Kumlutarla, Tabanbükü and Gemici region of Karakaya Dam Lake were examined. A total of 595 fish; 200 Alburnus mossulensis, 117 Chondrostoma regium, 103 Capoeta trutta, 98 Capoeta umbla and 79 Acanthobrama marmid were used as study materied. In terms of endohelminthes. Three parasite species were found in 405 fish host Diplostomum sp. Metacercaria (Trematoda) was found in the eyes of. Alburnus mossulensis, Chondrostoma regium, Capoeta trutta, Capoeta umbla and Acanthobrama marmid. Neoechinorhynchus rutili (Acanthocephala) was found in abdominal cavity of Capoeta trutta. Khawia sinensis (Cestoda) was found in the intestine of Alburnus mossulensis and Acanthobrama marmid.