The international cruise industry has seen significant growth in recent years, with cruise ships becoming larger and more technologically advanced. In 2023, the industry will witness the launch of some of the largest and most luxurious cruise ships ever built. These ships offer an array of amenities and activities that cater to the diverse preferences of travelers. In this article, we will explore the top 20 largest cruise ships in 2023, ranked by size and passenger capacity.
Wonder of the Seas

Royal Caribbean International owns the Wonder of the Seas. It will be the biggest cruise ship in the world in 2023. This floating wonder, which is 235,600 tons long and 188 feet wide, will give its guests a very high-class experience. The Wonder of the Seas has an impressive 2,867 staterooms spread out over 18 decks, 16 of which are available to guests. People can enjoy many services, such as 19 pools, which makes it the world’s largest cruise ship with pools.
Symphony of the Seas
The second-biggest cruise ship in the world right now is the Symphony of the Seas from Royal Caribbean. With a gross tonnage of 228,081 tons and a length of 1,188 feet, Symphony of the Seas offers a multitude of entertainment options and activities for its passengers. The ship has 16 guest decks and 2,759 staterooms, accommodating up to 5,518 passengers at double occupancy. From water parks to Broadway shows, Symphony of the Seas provides an unforgettable vacation experience.
Harmony of the Seas
Another Royal Caribbean gem, Harmony of the Seas, holds the title of the third-largest cruise ship in the world. With a gross tonnage of 226,963 tons and a length of 1,188 feet, Harmony of the Seas offers a plethora of amenities and attractions. With sixteen guest decks, the ship offers a wide range of sports and entertainment for its passengers. Harmony of the Seas has 2,747 staterooms that can hold up to 5,479 people when two people share a room.
Oasis of the Seas
Royal Caribbean’s Oasis of the Seas, the first ship in the Oasis class, is one of the largest cruise ships in the world. With a gross tonnage of 226,838 tons and a length of 1,187 feet, Oasis of the Seas offers a unique and luxurious experience for its passengers. The ship features 18 decks, including 16 guest-accessible decks, and boasts an impressive 2,801 staterooms. With its innovative design and a wide range of activities, Oasis of the Seas promises an unforgettable vacation.
Allure of the Seas
Allure of the Seas, another member of Royal Caribbean’s Oasis class, ranks as the fifth-largest cruise ship in the world. With a gross tonnage of 225,282 tons and a length of 1,187 feet, Allure of the Seas offers a variety of amenities and entertainment options. The ship features 16 guest decks and 2,742 staterooms, accommodating up to 5,484 passengers at double occupancy. From water slides to Broadway shows, Allure of the Seas provides a fun-filled experience for all.
Costa Smeralda
Costa Smeralda, operated by Costa Cruises, is the largest cruise ship commissioned by the company. With a gross tonnage of 185,010 tons and a length of 1,106 feet, Costa Smeralda offers a luxurious and environmentally friendly experience for its passengers. The ship features 20 decks and 2,614 staterooms, accommodating up to 5,224 passengers at double occupancy. Costa Smeralda’s itinerary includes ports in the Mediterranean, allowing passengers to explore sun-soaked destinations.
P&O Iona
P&O Cruises’ Iona is the largest cruise ship in the company’s fleet. Iona has a length of 1,130 feet and a gross tonnage of 184,089 tons. It has a lot of comforts and things for its passengers to do. The ship features 15 decks and 2,610 cabins, accommodating up to 5,250 passengers at double occupancy. Iona’s itineraries include destinations in Europe and the Canary Islands, providing a memorable experience for travelers of all ages.
AIDA Nova
It is the first cruise ship in the world to use liquid natural gas (LNG) as fuel. It is owned by AIDA Cruises. With a length of 1,106 feet and a gross mass of 183,858 tons, AIDA Nova is a green and cutting edge way to cruise. The ship features 15 decks and 2,600 passenger cabins, accommodating up to 5,252 passengers at double occupancy. AIDA Nova’s itineraries include ports in the Canary Islands and Europe, allowing passengers to explore a variety of destinations.
MSC Grandiosa
MSC Grandiosa, part of MSC Cruises’ Meraviglia Plus class, offers a luxurious and innovative experience for its passengers. With a gross tonnage of 181,541 tons and a length of 1,087 feet, MSC Grandiosa features 15 guest-accessible decks and 2,421 cabins. The ship can accommodate up to 4,842 passengers at double occupancy. MSC Grandiosa’s itineraries include ports throughout Europe, providing passengers with the opportunity to explore various cultural destinations.
Carnival Mardi Gras

Carnival Mardi Gras, named after the first ship in the Carnival fleet, offers a festive and fun-filled experience for its passengers. With a gross tonnage of 180,000 tons and a length of 1,130 feet, Carnival Mardi Gras features 17 decks and 2,641 staterooms. Up to 5,282 people can fit on the ship, which has many entertainment choices, such as a roller coaster and restaurants with celebrity chefs.
MSC Meraviglia
MSC Meraviglia, part of MSC Cruises’ Meraviglia class, provides a stunning and immersive experience for its passengers. With a gross tonnage of 171,598 tons and a length of 1,034 feet, MSC Meraviglia features 15 guest decks and 2,244 staterooms. Up to 4,500 people can stay on the ship at double occupancy. MSC Meraviglia’s itineraries include ports in the Caribbean and Europe, allowing passengers to discover vibrant destinations.
Spectrum of the Seas
Spectrum of the Seas, operated by Royal Caribbean, offers a unique and exciting experience for its passengers. With a gross tonnage of 169,379 tons and a length of 1,139 feet, Spectrum of the Seas features 16 guest decks and 2,137 staterooms. The ship can accommodate up to 4,246 passengers at double occupancy. Spectrum of the Seas offers itineraries throughout Asia, allowing passengers to explore diverse cultures and stunning landscapes.
Each ship offers its own unique experience and amenities, ensuring an unforgettable vacation for passengers. Whether you’re looking for luxury, entertainment, or relaxation, these massive cruise ships have something for everyone. Embark on a journey aboard one of these floating wonders and create memories that will last a lifetime.
Related FAQs
What makes the Wonder of the Seas the largest cruise ship in 2023?
The Wonder of the Seas is the largest cruise ship in 2023, thanks to its impressive size of 235,600 tons and 2,867 staterooms spread across 18 decks, making it an unparalleled floating wonder.
Do these large cruise ships offer a variety of activities for passengers?
Of course! From water parks to Broadway shows, these huge cruise ships have a lot of different things to do and see, so there’s something for everyone on board.
How many passengers can these large cruise ships accommodate?
The largest cruise ships in 2023 can accommodate a substantial number of passengers. For example, the Symphony of the Seas can hold up to 5,518 passengers at double occupancy, providing ample space for a memorable vacation.
Are there eco-friendly cruise ship options among the largest ones in 2023?
Yes, the AIDA Nova is an eco-friendly choice as it’s the first cruise ship in the world to use liquid natural gas (LNG) as fuel, providing a greener and cutting-edge cruising experience.
What destinations can I explore on these massive cruise ships?
These large cruise ships have itineraries that include a variety of destinations, from sun-soaked Mediterranean ports to vibrant European and Caribbean locations, offering passengers the chance to explore diverse cultures and landscapes during their voyage.



