The Barony of Akova was a medieval Frankish fiefdom of the Principality of Achaea, located in the mountains of eastern Elis in the Peloponnese peninsula in Greece, centred on the fortress of Akova or Mattegrifon. It was among the twelve original baronies of Achaea, but was conquered by the Byzantines in 1320.

The Principality of Achaea or Principality of Morea was one of the vassal states of the Latin Empire, which replaced the Byzantine Empire after the capture of Constantinople during the Fourth Crusade. It became a vassal of the Kingdom of Thessalonica, along with the Duchy of Athens, until Thessalonica was captured by Theodore, the despot of Epirus, in 1224. After this, Achaea became for a while the dominant power in Greece.