Corfu (/kɔːrˈfuː, –fjuː/; Greek: Κέρκυρα, Kérkyra [ˈcercira]; Ancient Greek: Κέρκυρα or Κόρκυρα; Latin: Corcyra; Italian: Corfù) is a Greek island in the Ionian Sea. It is the second largest of the Ionian Islands and, including its small satellite islands, forms the northwesternmost part of Greece. The island is part of the Corfu regional unit, and is administered as a single municipality, which also includes the smaller islands of Ereikoussa, Mathraki and Othonoi.

The city of Corfu stands on the broad part of a peninsula, whose termination in the Venetian citadel (Greek: Παλαιό Φρούριο) is cut off from it by an artificial fosse formed in a natural gully, with a seawater moat at the bottom, that now serves as a marina and is called the Contrafossa. The old town, having grown within fortifications, where every metre of ground was precious, is a labyrinth of narrow streets paved with cobblestones, sometimes tortuous but colourful and clean. These streets are known as kantoúnia (Greek: καντούνια), and the older amongst them sometimes follow the gentle irregularities of the ground; while many are too narrow for vehicular traffic. A promenade rises by the seashore towards the bay of Garitsa (Γαρίτσα), together with an esplanade between the city and the citadel known as Spianada with the Liston (it) arcade (Greek: Λιστόν) to its west side, where restaurants and bistros abound.