Telestes polylepis, the Croatian dace, is a species of ray-finned fish belonging to the family Leuciscidae, which includes the daces, Eurasian minnows and related species. It is found only in a 4 km² (1.5 sq mi) area of karst landscape in Ogulinsko polje, northwestern Croatia.

Its natural habitats are freshwater springs, subterranean rivers and small ponds.

It is threatened by introduced species as well as habitat loss. It is thought they may be extinct within the next few years as there are less than 100 left.

Males tend to develop pronounced nuptial tubercles on the body and head.

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