Kalavryta (Greek: Καλάβρυτα) is a town and a municipality in the mountainous east-central part of the regional unit of Achaea, Greece. The town is located on the right bank of the river Vouraikos, 24 kilometres (15 miles) south of Aigio, 40 km (25 miles) southeast of Patras and 62 km (39 miles) northwest of Tripoli. Notable mountains in the municipality are Mount Erymanthos in the west and Aroania or Chelmos in the southeast. Kalavryta is the southern terminus of the Diakopto-Kalavryta Railway, built by Italian engineers between 1885 and 1895.
On 13 December 1943, in what is commemorated as the Massacre of Kalavryta, allegedly in retribution for the killing of 81 German soldiers captured by partisans during the Nazi occupation in World War II, German troops ordered all male residents of Kalavryta, aged 14 years and up, to gather in a field just outside the village. There, they machine-gunned down 696 of them. Only 13 survived. After that they burnt down the town before they left and the next day they burnt down the Monastery of Agia Lavra, birthplace of the Greek War of Independence. Post-war, the federal Government of Germany offered gestures of atonement in the form of free school books for the high school, scholarships for orphans of the massacre and built an old peoples' home. No German commanders, (e.g. Major Ebersberger who carried out the destruction of Kalavryta; Hauptmann Dohnert who led the firing party), were ever brought to justice for these events
In Kastria, in the municipal unit of Lefkasi, there is the famous cave system Spilaio ton Limnon ("Cave of the Lakes") which is filled with beautiful lakes and strange rock formations. Kalavryta has a ski centre which is located east of town, on the slopes of Chelmos. The monastery of Agia Lavra is located on a hill 4 km (2 mi) southwest of Kalavryta. Another famous monastery nearby is Mega Spilaio which is located 8 km (5 mi) northeast.