Palaeopolis, Palaiopolis, or Paleopolis (Ancient Greek: Παλαιόπολις, lit. 'old city'), rarely spelled Palaepolis (Παλαίπολις), can refer to the cities:

in Italy

• the original site of the Greek colony in Italy that became Neapolis, now Naples

in Turkey

• Palaeapolis (Caria), now in Turkey
• Palaeopolis (Lydia), now in Turkey
• Palaeopolis in Pamphylia, now Akören (in Adana province?) in Turkey
• Palaeopolis, the previous name of the Seleucia Pieria

in Greece

• Palaiopoli, Andros, in the Cyclades Islands (Greece)
• Palaeopolis, a ruined ancient city on the Greek island of Samothrace in the northern Aegean Sea
• Palaeopolis, an ancient Greek settlement on the island Sant Martí d'Empúries, modern Spain
• Palaeopolis, Corfu, within the estate of Mon Repos on the Ionian Island of Corfu