Kalavryta 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, south of Aigio, southeast of Patras and 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 rack railway, built by Italian engineers between 1885 and 1895.