Pachypanchax is a genus of aplocheilid killifishes native to freshwater in Madagascar, with one species (P. playfairii) known from Seychelles.
The currently recognized species in this genus are:
Several other species have been recognized, but not yet formally described. The new species designator does not necessarily carry over to the formal species name, and one of the new species listed below (Talio or Tsiribihina) is probably now known as P. patriciae.