The Pisidian spring minnow (Pseudophoxinus fahrettini) is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, Eurasian minnows and related species. It is found in Köprü River drainage in central Anatolia in Turkey.
The fish is named in honor of Turkish zoologist Fahrettin Küçük, of the Süleyman Demirel University, because of his contribution to the knowledge of Central Anatolian fishes.