Geronthrae or Geronthrai, or Geranthrae or Geranthrai (Γεράνθραι), also written as Gerenthrae or Gerenthrai (Γερένθραι), was a town of ancient Laconia, situated in a commanding position upon the southwestern face of the mountain above the plain of the Eurotas. We learn from Pausanias that Geronthrae possessed a temple and grove of Ares, to whom a yearly festival was celebrated, from which women were excluded. Around the agora there were fountains of potable water. On the acropolis stood a temple of Apollo.