Lethrinops gossei is a species of cichlid endemic to Lake Malawi where it is usually found in deep waters () with muddy substrates in the southern portion of the lake. This species grows to a length of SL.
The specific name honours the Belgian zoologist Jean-Pierre Gosse (1924âÂÂ2001), who was the curator of vertebrates at the Institut Royal des Sciences Naturelles de Belgique.