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¹ Recep Tayyip Erdogan University, Faculty of Fisheries, 53100, Rize, Türkiye
² Hacettepe University, Faculty of Science, Biology Department, Beytepe Campus, 06800 Ankara, Türkiye
³ Istanbul University, Faculty of Science, Department of Biology, Vezneciler-34134 Istanbul/Türkiye
⁴ Eğirdir Fisheries Faculty, Isparta University of Applied Sciences, Isparta, Türkiye
⁵ Ege University, Faculty of Fisheries, 35100, Bornova, Izmir, Türkiye
⁶ Republic of Türkiye Ministry of Agriculture and Forestry, General Directorate of Fisheries and Aquaculture, Lodumlu, Ankara, Türkiye
⁷ Republic of Türkiye Ministry of Agriculture and Forestry, General Directorate of Agricultural Research and Policies, Lodumlu, Ankara, Türkiye
⁸ Fisheries Research Institute, 32500, Eğirdir, Isparta, Türkiye
⁹ Fisheries Research Institute, Elazığ, Türkiye
¹⁰ Department of Biology, Faculty of Art and Sciences, Düzce University, Düzce, Türkiye
¹¹ Department of Marine and Freshwater Resources Management, Faculty of Aquatic Sciences, Istanbul University, Istanbul, Türkiye
¹² Vocational School of Health Services, Eskişehir Osmangazi University, Eskişehir, Türkiye
¹³ Çanakkale Onsekiz Mart University, Faculty of Science, Department of Biology, 17020 Çanakkale, Türkiye
¹⁴ Department of Biology, Section of Hydrobiology, Faculty of Science, Dicle University, Retired Faculty Member, Diyarbakır, Türkiye
¹⁵ Faculty of Art and Sciences, Department of Biology, Ondokuz Mayıs University, Samsun, Türkiye
¹⁶ Burdur Mehmet Akif Ersoy University, Faculty of Art and Sciences, Department of Biology, Burdur, Türkiye DOI : 10.4194/TRJFAS29729 Viewed : 2 - Downloaded : 2 Türkiye, a key biogeographic bridge between Europe and Asia, has experienced major advances in taxonomic knowledge of its freshwater fishes, but existing faunal lists lag behind recent revisions. We present a revised checklist that compiles and standardises records using the latest IUCN assessments, published descriptions and revisions (to 2026), museum collections and expert-verified data. Unestablished introductions and strictly marine visitors were excluded. We recognise 390 freshwater fish species in 37 families, including 367 native species and 23 established non-native taxa, of which 202 natives (55%) are endemic to Türkiye. Species richness is concentrated in Leuciscidae (113 species), Nemacheilidae (59) and Cyprinidae (53), which together comprise 61.5% of the native fauna. At the catchment scale, total richness ranges from 11 species in the Van Basin to 65 in the Sakarya drainage, endemic richness was highest in Antalya (28 species) and non-native richness in the Sakarya drainage (10 species). The checklist provides updated nomenclature, distributions within Türkiye and standardised common names, establishing an agreed taxonomic baseline for biodiversity assessment, fisheries and conservation management. Keywords : Fish taxonomy Freshwater fish Ichthyofauna National checklist Türkiye