One of the six founding states of Australia, Queensland has been a federated state subject to the Australian Constitution since 1 January 1901. It is a parliamentary constitutional monarchy. The constitution of Queensland sets out the operation of the state's government. The state's constitution contains several entrenched provisions which cannot be changed in the absence of a referendum. There is also a statutory bill of rights, the Queensland Human Rights Act 2019. Queensland's system of government is influenced by the Westminster system and Australia's federal system of government.

The premier of Queensland is the head of government in the Australian state of Queensland.