Gozo (ˈɡoʊzoʊ, USalsoˈɡɔːdzoʊ,_ˈɡɔːtsoʊ; Għawdex, ˈɐːʕʊ̯dɛʃ), in antiquity known as Gaulos (; Gaúlos), is an island in the Maltese archipelago in the Mediterranean Sea. The island is part of the Republic of Malta. After the island of Malta itself, it is the second-largest island in the archipelago.
As of 2021, the island has a population of around 31,232 (out of Malta's total 443,227), and its inhabitants are known as Gozitans (Għawdxin). It is rich in historic locations such as the Ġgantija temples, which, along with the other Megalithic Temples of Malta, are amongst the world's oldest free-standing structures.
The island is rural in character and less developed than the island of Malta. Gozo is known for its scenic hills, which are featured on its coat of arms. The Azure Window in Dwejra, San Lawrenz, a natural limestone arch, was a remarkable geological feature until its collapse on March 8, 2017. The island has other notable natural features, including the Inland Sea and Wied il-Mielaħ Window. There are a few sandy beaches on the island, namely Ramla Bay in Xagħra and Nadur, as well as seaside resorts that are popular with both locals and tourists, the most popular being Marsalforn and Xlendi. Gozo is considered one of the top diving destinations in the Mediterranean and a centre for water sports.
The island was named by the Aragonese after they conquered it in 1282. The word Gozo means "joy" in Castilian Spanish.
Gozo has been inhabited since 5000 BC, when farmers from nearby Sicily crossed the sea to the island. Due to the discovery of similar pottery found in both places from the Għar Dalam phase, it has been suggested that the first colonists were specifically from the area of Agrigento; however, it is currently unknown exactly where in Sicily the farmers came from. They are thought to have first lived in caves on the outskirts of what is now San Lawrenz.
Gozo was an important place for cultural evolution, and during the Neolithic period the Ġgantija temples were built; they are amongst the world's oldest free-standing structures, as well as the world's oldest religious structures.