Cruise ships are getting bigger and bigger, and by the time a new world’s largest cruise ship is built, an even bigger ship is already being planned. Cruise Hive looks at the top ten biggest cruise ships in the world by gross tons.
What’s the Largest Cruise Ship in the World?
The list constantly changes as new mega-ships from different cruise lines enter service. So, what’s the largest cruise ship in the world right now?
Since being delivered from the shipyard to the cruise line in November 2023, Icon of the Seas overtook Wonder of the Seas as the world’s largest cruise ship. The new-class Icon of the Seas is an impressive 250,800 gross tons and can hold 5,610 passengers at double occupancy. The giant ship that Meyer Turku built in Finland can also hold 2,350 crew members. and is 1,198 feet long.
The crown of the world’s biggest cruise ship previously went to Wonder of the Seas, an Oasis-class vessel operated by Royal Caribbean. The ship is similar in design to her sister ships but adds some additional features and evolves the class. Wonder of the Seas is a massive 236,857 gross tons with a guest capacity of 5,734 at double occupancy. You can check the current top biggest cruise ships in the list below.
In This Article…
1. Icon of the Seas (Royal Caribbean)
On November 27, 2023, Royal Caribbean’s Icon of the Seas was officially delivered from the Meyer Turku shipyard in Finland to Royal Caribbean. This means that the cruise line takes over responsibility for the giant ship, and the vessel officially becomes a part of the fleet. It now means that Icon of the Seas is the world’s largest cruise ship, overtaking Wonder of the Seas, which is also operated by the same cruise line.
Royal Caribbean’s Icon of the Seas (Photo Credit: Jouni Niskakoski)
Icon of the Seas is the first in its class and is powered by Liquified Natural Gas (LNG). The massive ship brings loads of new innovations and features to the industry across its eight neighborhoods, including six record-breaking slides, the first swim-up bar at sea, the first suspended infinity pool, a suite sun deck, a breathtaking AquaDome venue, a three-level Ultimate Family Townhouse, and more than 40 ways to dine and drink.
Icon of the Seas Stats
2. Wonder of the Seas (Royal Caribbean)
Wonder of the Seas, the fifth Oasis-class vessel, took the world’s largest cruise ship title from her sister Symphony of the Seas in 2022. However, since the arrival of the much-anticipated new-class Icon of the Seas, the vessel has now lost that crown. The ship was built at the Chantiers de l’Atlantique shipyard in Saint Nazaire, France, and delivered to the cruise line on January 27, 2022.
Photo Courtesy: Royal Caribbean
Just like her sister ships, Wonder of the Seas is divided into themed neighborhoods, but this ship has the addition of a new Suite Neighborhood. The eighth neighborhood offers Royal Suite Guest a Suite Sun Deck with a plunge pool, private restaurant, deck bar, and lounges. The area also has the largest Ultimate Family Suite.
Other new features include a new southern restaurant named the Mason Jar Southern Restaurant & Bar, Wonder Playscape, and The Vue Bar. The world’s largest cruise ship departs on her maiden voyage from Fort Lauderdale, Florida, on March 4, 2022.
Wonder of the Seas Stats
3. Symphony of the Seas (Royal Caribbean)
Symphony of the Seasis the fourth Oasis-class and 25th cruise ship from Royal Caribbean. It is slightly larger than her sister ships that were built earlier, making her the third largest cruise ship.
Photo Credit: EQRoy /
Symphony of the Seaswas built at the then-named STX France shipyard and was delivered to the cruise line on March 23, 2018. The vessel departed on its first one-time special preview sailing on March 31, 2018.
The first official maiden voyage departed on April 7, 2018, on a 7-night Mediterranean voyage from Barcelona, Spain.Symphony of the Seashas been based inPortMiami, Floridasince November 10, 2018.
Symphony of the Seas Stats
4. Harmony of the Seas (Royal Caribbean)
Harmony of the Seasovertakes its older Oasis-class ships just slightly, making her the fourth-largest cruise ship in the world. The vessel is the first of two new orders from STX France to expand the large class ships to four.
Photo: Royal Caribbean
Harmony of the Seaswas the first in the class to feature the 10-Story Ultimate Abyss slide, which is located aft of the ship above the AquaTheater. The slide has since been a major feature on new Oasis-class vessels and added during refurbishments.
Harmony of the Seas Stats
5. Oasis of the Seas (Royal Caribbean)
This is the ship that helped push the cruise industry to new heights.Oasis of the Seaswas the first of its kind when she arrived at the end of 2009. The groundbreaking vessel was built at the STX shipyard in Turku, Finland.Oasis of the Seasalso boasts features like the Zip-line and the AquaTheater.
In 2019, The Royal Caribbean cruise ship underwent a massive $165 million upgrade, which did not just add new water slides, but also The Ultimate Abyss aft slide, new dining venues, and a refreshed look. The amplification increased the ship’s gross tonnage, and she now overtakes sister ship Allure of the Seas in the list of the world’s top 10 largest cruise ships.
Oasis of the Seas Stats
6. Allure of the Seas (Royal Caribbean)
This ship is huge and the second in the record-breaking Oasis class for Royal Caribbean.Allure of the Seashas seven distinct neighborhoods and too many dining spaces to count!
Photo Via: Royal Caribbean
The vessel is different from other large ships in the cruise industry and boasts features like the Zipline and the AquaTheater.
Allure of the Seas Stats
7. MSC World Europa (MSC Cruises)
This is the first world-class vessel from the fast-growing MSC Cruises and was built at the popular Chantiers de l’Atlantique shipyard in St. Nazaire, France. Since her delivery in October 2022, she has been the largest MSC cruise ship ever. That will be until the sister ship MSC World America arrives in 2025.
Photo Courtesy: MSC Cruises
MSC World Europa is the second largest cruise ship powered by Liquefied Natural Gas (LNG) and takes the cruise line into a new era of sustainability, which it’s taking very seriously. The 7th world’s biggest cruise ship features more than 30 different dining venues and a new thrilling 250-foot Drop slide located aft of the ship.
MSC World Europa Stats
8. Arvia (P&O Cruises)
Arvia is the second Excel class cruise ship for British-based P&O Cruises. The vessel is slightly larger than its sister ship Iona and was constructed at the popular Meyer Werft shipyard in Papenburg, Germany. She is currently the largest in the P&O fleet and is the largest ever constructed vessel purposely for the British market.
Photo Courtesy: P&O Cruises / James Robinson for Christopher Ison
Arvia Stats
9. Costa Smeralda (Costa Cruises)
Costa Smeraldais the cruise line’s first-ever cruise ship powered by Liquified Natural Gas (LNG). She’s also the largest vessel ever constructed for the Italian-based cruise operator.
Photo Credit: maudanros /
The shipwas finally deliveredfrom the Meyer Turku shipyard in Finland after a delay on December 5, 2019. Her first regular voyage departed Savona on December 31, 2019; however, there was a special voyage for travel agents that departed Barcelona, Spain on December 18, 2019.
Costa Smeralda Stats
10. Costa Toscana (Costa Cruises)
Costa Toscana is the second Excel class vessel built for Carnival-owned Costa Cruises. The LNG-powered cruise ship is the flagship of the fleet and was constructed at the Meyer Turku shipyard in Finland. She’s almost identical to the Costa Smeralda, including gross tonnage and size. The only reason she is lower than her sister ship in the largest cruise ships in the world is that she entered service in 2021.
Costa Toscana Stats
Just Outside the Top 10
11. P&O Iona (P&O Cruises)
British-based P&O Cruisestook delivery of its largest-ever cruise shipand first to be powered by Liquified Natural Gas (LNG) in October 2020. This came after delays due to the global pandemic and the impact on the Meyer Werft shipyard in Papengburg, Germany, which is where the vessel was constructed.
Photo Via: Meyer Werft
P&O Iona Stats
FAQ on Largest Cruise Ships
What is the largest cruise ship in the world?
Royal Caribbean’s Icon of the Seas became the new world’s largest cruise ship when she was delivered to the cruise line in November 2023, at a massive 250,800 gross tons and a length of 1,198 feet. The LNG-powered vessel will also have a guest capacity of 5,610 at double occupancy, which can reach a maximum of 7,600. There will be a capacity for 2,350 crew members.
What was the previouslt largest cruise ship in the world?
Royal Caribbean’s Wonder of the Seas was previously the world’s largest cruise ship in most of 2023. The Oasis class vessel is 236,857 gross tons and has a passenger capacity of 5,734 at double occupancy, but that goes up to 7,084 at maximum capacity. The giant cruise ship also has a crew capacity of 2,204, and there are a total of 18 decks.
