Subiaco may refer to:

  • Subiaco, Lazio, town in Italy, site of St. Benedict's first monastery,
  • Subiaco, Western Australia, suburb of Perth
  • City of Subiaco, local government municipality in Perth, Western Australia centred on the suburb of the same name
  • Subiaco, Arkansas, town in the United States
    • Subiaco Abbey and Academy, Benedictine Monastery and school, located in its namesake town in the US state of Arkansas
  • Subiaco Oval, sports stadium in Subiaco, Western Australia
  • Subiaco Creek, a watercourse in Sydney, Australia.