Chub may refer to:
Fishes
* Any one of a number of ray-finned fishes in several families and genera. In Europe, the term "chub" usually refers to the European chub (Squalius cephalus).
Other fishes called "chubs" are:
In family Cyprinidae
* Bigeye chub, genus Hybopsis
* Creek chub, genus Semotilus
* European chub, genus Squalius
* Flame chub, Hemitremia flammea (a monotypic genus)
* Flathead chub, genus Platygobio
* Hornyhead chub, genus Nocomis
* Lake chub, genus Couesius
* Least chub, Iotichthys phlegethontis (a monotypic genus)
* Leatherside chub, Snyderichthys copei (a monotypic gen...