Oasis-class cruise ship

Oasis of the Seas at Nassau, Bahamas, in January 2010
Class overview
BuildersSTX Finland Turku Shipyard (Now Meyer Turku), Finland & Chantiers de l'Atlantique, Saint-Nazaire, France
OperatorsRoyal Caribbean International
Preceded byFreedom class
Succeeded byQuantum class
SubclassesOasis Plus, Oasis Ultra
Built2007–2010; 2013–2028 (planned)
In service2009–present
Planned7
Building1
Completed6
Active6
General characteristics
TypeCruise ship
Tonnage225,282 GT–236,857 GT
Length361.8 m (1,187 ft 0 in) overall
Beam
  • 47 m (154 ft 2 in) waterline
  • 64.9 m (213 ft) extreme
Height72 m (236 ft 3 in) above water line
Draught9.3 m (30 ft 6 in)
Depth22.55 m (74 ft 0 in)
DecksOasis and Oasis Plus: 16 passenger decks, 18 decks total, Oasis Oasis Ultra - 17 passenger decks 19 decks total
Installed power
  • 3 × Wärtsilä 12V46D, 13,860 kW (18,590 hp) each
  • 3 × Wärtsilä 16V46D, 18,480 kW (24,780 hp) each
Propulsion
  • 3 × 20,000 kW (27,000 hp) ABB Azipod (all azimuthing)
  • 4 × 5,500 kW (7,400 hp) Wärtsilä CT3500 bow thrusters
Speed22.6 knots (41.9 km/h; 26.0 mph)
Capacity5,400 passengers double occupancy; 6,296 total

The Oasis class is a class of six Royal Caribbean International cruise ships. The first two ships in the class, Oasis of the Seas and Allure of the Seas, were delivered respectively in 2009 and 2010 by STX Europe Turku Shipyard, Finland. A third Oasis-class vessel, Harmony of the Seas, was delivered in 2016 built by STX France. A fourth vessel, Symphony of the Seas, was completed in March 2018. As of March 2022, the fifth Oasis-class ship, Wonder of the Seas, was the largest cruise ship in the world. A sixth ship, Utopia of the Seas, slightly larger than the previous one, followed in July 2024, with a seventh to follow in 2028.

The first two ships in the class, Oasis of the Seas and Allure of the Seas, are slightly exceeded in size by the third ship, Harmony of the Seas. As of 2022, all ships of the Oasis class rank amongst the world's largest passenger ships although the title of overall largest is now held by Icon Class lead ship Icon of the Seas. This means that Utopia of the Seas is the first in its class to not be the world's largest cruise ship.