See text Leuciscus is a genus of fish belonging to the family Cyprinidae.

They are inland water fishes commonly called Eurasian daces.

Species broadly distributed in Europe include the common dace Leuciscus leuciscus and the ide L. idus.

The delimitation of Leuciscus and Squalius is not completely resolved; some species have been moved from one genus to the other only in recent years.

The genera Petroleuciscus and Telestes have also been split off from Leuciscus recently; for the latter the same holds true as for Squalius regarding the unclear delimitations.