Odderøya is an island and neighborhoods in Kristiansand municipality in Agder county, Norway. The 0.7-square-kilometre island lies immediately to the south of the city centre of Kristiansand and it is connected to the mainland by four bridges. The island creates a natural division between the eastern and western parts of the port of Kristiansand. Gravanekanalen canal separates Odderøya from the city center and the fish wharf.