Malapterurus leonensis is a species of electric catfish endemic to Sierra Leone, where it is found in the coastal rivers.

This species grows to a length of 15.5 centimetres (6.1 in) SL.

The Florida Fish and Wildlife Conservation Commission has listed the electric catfish as a prohibited species.

Prohibited nonnative species, as they are considered to be dangerous to the ecology and/or health and welfare of the people in Florida.

Currently, no indication of M. leonensis in the United States in the wild or in trade was found.