象鼻鱼科为辐鳍鱼纲骨舌鱼目的其中一科。

象鼻鱼科下分20个属，如下：

The family Mormyridae, sometimes called "elephantfish" (more properly freshwater elephantfish), are freshwater fish in the order Osteoglossiformes native to Africa. It is by far the largest family in the order with around 200 species. Members of the family are popular, if challenging, aquarium species. These fish are also known for having large brain size and unusually high intelligence.