谷鳉科为辐鳍鱼纲鲤齿目的其中一科。

谷鳉科下分18个属，如下：

Splitfins are a family, Goodeidae, of teleost fish endemic to Mexico and some areas of the United States. This family contains 40 species within 18 genera. The family is named after ichthyologist George Brown Goode.