Royal Caribbean International plans to send Quantum of the Seas to Australia for the 2021-2022 season.
It will join sister ships Ovation and Radiance of the Seas from Alaska after the 2021 northern summer season.
It is the first Aussie deployment for Quantum.
The 4,000 guest ship is currently based in China.
Quantum will homeport in Sydney along with Ovation of the Seas, while Radiance will be based at the new Brisbane port terminal.
They will offer a variety of Australia, New Zealand and the South Pacific itineraries.
Bookings open on June 11.