''Haplochromis macrognathus'' is a species of cichlid fish endemism, endemic to Lake Victoria in East Africa. This piscivorous species can reach a standard length of .
Last seen in the early 1980s, it may now be extinct.
References
Haplochromis, macrognathus
Fish described in 1922
Fish of Lake Victoria
Taxonomy articles created by Polbot
{{Haplochromis-stub