Corfu (regional unit) in the context of "Antipaxos"

Corfu (/kɔːrˈf(j)uː/ kor-FOO, -⁠FEW, US also /ˈkɔːrf(j)uː/ KOR-foo, -⁠few) or Kerkyra (Greek: Κέρκυρα, romanized: Kérkyra, pronounced [ˈcercira] ) is one of the Ionian Islands in western Greece, and is separated by the Straits of Corfu from the mainland of Greece and Albania. It is the northernmost island on Greece's west coast except for its satellite Diapontian Islands, which are also the westernmost point of all Greece. Corfu and the Diapontian Islands mark the International Hydrographic Organization border between the Ionian Sea to the south and the Adriatic Sea to the north. Within the Ionian Islands region, the regional unit of Corfu extends as far south as the Paxoi. The capital and largest city of the regional unit is also named Corfu.

The island is bound up with the history of Greece from the beginnings of Greek mythology, and is marked by numerous battles and conquests. Ancient Korkyra took part in the Battle of Sybota which was a catalyst for the Peloponnesian War, and, according to Thucydides, the largest naval battle between Greek city states until that time. Thucydides also reports that Korkyra was one of the three great naval powers of Greece in the fifth century BCE, along with Athens and Corinth. Ruins of ancient Greek temples and other archaeological sites of the ancient city of Korkyra are located in Palaiopolis. Medieval castles punctuating strategic locations across the island are a legacy of struggles in the Middle Ages against invasions by pirates and the Ottomans. Two of these castles enclose its capital, which is the only city in Greece to be surrounded in such a way. As a result, Corfu's capital has been officially declared a kastropolis ("castle city") by the Greek government.

The Diapontian Islands or Diapontia Islands (Greek: Διαπόντια Νησιά, romanized: Diapóntia Nisiá, also known as Othonoi Islands (Greek: Νήσοι Οθωνοί, romanized: Nísoi Othonoí) are a Greek island group in the Ionian Sea. They are located northwest of Corfu. The main and the only inhabited islands of the archipelago are Othoni, Ereikoussa and Mathraki. The complex includes also the islets and rocks of Diakopo, Diaplo, Karavi, Kastrino, Leipso, Ostrako, Plaka, Plateia and Tracheia.

The largest island is Othoni, with an area of 10.8 km and it's the most populated with 457 inhabitants according to the 2021 census. The islands are the westernmost point in Greece and administratively belong to Corfu regional unit. The islands today are a tranquil place for holidays.

Corfu (/kɔːrˈf(j)uː/, also US: /ˈkɔːrf(j)uː/) or Kerkyra (Greek: Κέρκυρα, romanized: Kérkyra, pronounced [ˈcercira] ; Ancient Greek: Κόρκυρα, romanized: Kórkyra, pronounced [kórkyra]; Medieval Greek: Κορυφώ, romanized: Koryfó; Italian: Corfù; Latin: Corcyra) is a city and a former municipality on the island of Corfu, Ionian Islands, Greece. Since the 2019 local government reform, it is part of the municipality Central Corfu and Diapontian Islands. It is the capital of the municipality and of the Corfu regional unit. The city also serves as a capital for the region of the Ionian Islands. The city (with a population of 23,541 residents, while the whole island has a population of 101,600 residents) is a major tourist attraction and Greek regional centre and has played an important role in Greek history since antiquity.