Alonistaina or Alonistena (Greek: Αλωνίσταινα) is a village located in the municipality of Falanthos in the westcentral part of the prefecture of Arcadia. Alonistaina is accessed with a road linking Stemnitsa and Tripoli. It is located S of Vytina, 25 km W of Tripoli, N of Megalopoli, about 15 km E of Stemnitsa and about 20 to 25 km SE of Dimitsana.