Xenotilapia tenuidentata is a species of cichlid endemic to Lake Tanganyika where it is only known from the western shore (Democratic Republic of the Congo).

This species can reach a length of 8 centimetres (3.1 in) TL.

It can also be found in the aquarium trade.

[2] Some authorities place this species in the genus Microdontochromis along with Xenotilapia rotundiventralis, with X. tenuidentata as the type species.

This Cichlidae-related article is a stub.