This study was carried out between May 2013 and December 2015 in the Göynük Stream (Bingöl) that is one of the most important tributaries of the Murat River. Considering the stream tributaries connected to the Göynük Stream, the samples were captured from five stations: Garip Village, Ilıcalar Creek, Derinçay, Taşlıçay and Kale. In this study, 1349 fish samples were recorded in a total of 21 taxa including 14 taxa belonging to Cyprinidae, 3 to Nemacheilidae, 1 to Cobitidae, 2 to Sisoridae, and 1 to Mastacembelidae. Therefore, Cyprinidae was the predominant family. 1057 (78%) samples from the 14 taxa of Cyprinidae and 292 (22%) samples from the remaining 7 taxa of other 4 families were reported at the end of the study. The most dominant species in this study were: Capoeta umbla, Capoeta trutta, and Squalius semae from Cyprinidae family. Garra rufa and Cyprinion macrostomum species, which are endemic to the Euphrates and Tigris basin and have an important place in the freshwater fish literature in the world, were particularly abundant in Ilıcalar Creek, a section of the Göynük Stream. The aim of this study was to determine the fish fauna of the Göynük Stream on which there are five irrigation pump stations and HES reservoirs.