Macquarie may refer to:

• Lachlan Macquarie, Governor of the British colony of New South Wales from 1810 to 1821.
• Elizabeth Macquarie née Campbell, Lachlan Macquarie's second wife

• Division of Macquarie, an electoral district in the Australian House of Representatives
• Lake Macquarie (New South Wales), a lake
  • City of Lake Macquarie, a local government area surrounding Lake Macquarie
• Macquarie County, one of the 141 Cadastral divisions
  • Port Macquarie, a city in Macquarie County
• Macquarie Fields, New South Wales, a suburb of Sydney
• Macquarie Park, New South Wales, a suburb of Sydney,
  • Macquarie Centre, a regional shopping centre located in Macquarie Park
• Macquarie River, an inland river
  • Macquarie Marshes Nature Reserve
• Macquarie Street, Sydney, a street in Sydney

• Macquarie, Australian Capital Territory, a suburb of Canberra

• Macquarie Island, in the Southern Ocean
• Macquarie Heads, Tasmania, a locality

• Macquarie Group, an Australian company, composed of diversified financial services
• Nine Radio, formerly Macquarie Media, an Australian company operating radio stations nationally
• Macquarie Technology Group, an Australian telecommunications company, specialising in voice, data, mobile and hosting services for commercial and government business
• Macquarie University, a university in Sydney, Australia
  • Macquarie Graduate School of Management
  • Macquarie University Hospital

• Macquarie Lighthouse, a lighthouse in the suburb of Vaucluse, New South Wales, Australia
• Macquarie Dictionary, a dictionary of Australian English

• MacQuarrie
• McQuarrie