The City of Moreton Bay, known until July 2023 as the Moreton Bay Region, is a local government area in the north of the Brisbane metropolitan city in South East Queensland, Australia. Established in 2008, it replaced three established local government areas, the City of Redcliffe and the Shires of Pine Rivers and Caboolture.

Local government is the third-level of government in Australia, administered with limited autonomy under the states and territories, and in turn beneath the federal government. Local government is not mentioned in the Constitution of Australia, and two referendums in 1974 and 1988 to alter the Constitution relating to local government were unsuccessful. Every state/territory government recognises local government in its own respective constitution. Unlike the two-tier local government system in Canada or the United States, there is only one tier of local government in each Australian state/territory, with no distinction between counties and cities.