Top-10 Biggest Cruise Ships in the World by 2025

Cruise ships have come to epitomize luxury, cutting-edge design, and an unmatched travel experience. As we look ahead, the maritime industry keeps revealing increasingly grand and lavish ships, each competing to be recognized as the largest in the world. This article examines the top 10 colossal cruise ships that sail the seas, providing travelers with a floating paradise of opulence and adventure.

World’s Largest Cruise Ship 2025

The Icon of the Seas, a new creation by Royal Caribbean, is set to become the world’s largest cruise ship when it begins sailing in 2025. This giant ship can carry up to 7,600 passengers along with 2,350 crew members across its 20 decks.

Built especially for families, the ship is like a floating city filled with fun and luxury. It has seven swimming pools, nine whirlpools, and even a full waterpark with six exciting waterslides. The Icon of the Seas promises both adventure and relaxation, making it a truly unforgettable travel experience on the open sea.

Top-10 Biggest Ships in the World in 2025

Icon of the Seas, with the capacity of 7,600, is the biggest cruise ship in the world, followed by Wonder of the Seas, Harmony of the Seas, Symphony of the Seas and Iona.

Here is the list of top-10 biggest ships in the world:

Largest Ships in the World
Rank	Name	Cruise Line	Capacity
1.	Icon of the Seas	Royal Caribbean	7,600
2.	Wonder of the Seas	Royal Caribbean	6,988
3.	Harmony of the Seas	Royal Caribbean	6,780
4.	Symphony of the Seas	Royal Caribbean	6,680
5.	Iona	P&O Cruises	5,200
6.	Mardi Gras	Carnival Cruise Line	6,500
7.	MSC Virtuosa	MSC Cruises	6,334
8.	Panorama	Carnival Cruise Line	5,146
9.	Norwegian Bliss	Norwegian Cruise Line	4,903
10.	Discovery Princess	Princess Cruises	3,660

World’s Biggest Cruise Ship – Icon of the Seas

Capacity: 7,600

Cruise Line: Royal Caribbean

Debut date: January 2024

Length: 364.75 m

Width: 48.47 m

Royal Caribbean’s Icon of the Seas takes the top spot as the biggest cruise ship globally, set to debut in January 2024. Measuring an impressive 364.75 meters in length and 48.47 meters in width, this marvel of engineering boasts a gross tonnage of 250,800. Powered by 6 multi-fuel Wartsila engines, it can run on LNG and distillate fuel, making it a pioneer in eco-friendly cruising. With 20 decks, 7 swimming pools, 6 water slides, and capacity for 7,600 guests and a crew of 2,350, it promises an unmatched experience.

Second Largest Ship in the World – Wonder of the Seas

Capacity: 6,988

Cruise Line: Royal Caribbean International

Debut date: January 2022

Length: 362.1 m

Royal Caribbean’s Wonder of the Seas, delivered in January 2022, weighs in at 236,857 gross tonnes. As the fifth vessel in the Oasis class, it introduces new amenities such as a suite neighborhood, redesigned pool decks, and an all-new Aquatheatre. With a length of 1,188 feet, it accommodates 6,988 passengers and 2,300 crew members, showcasing the cruise line’s commitment to pushing the boundaries of onboard luxury.

Third Largest Ship in the World – Harmony of the Seas

Capacity: 6,780

Cruise line: Royal Caribbean International

Debut date: May 2016

Length: 362 m

Weight: 66 m

Delivered in May 2016, Harmony of the Seas, with a gross tonnage of 226,963 GT, is the third Oasis-class vessel from Royal Caribbean. Boasting 2,747 staterooms, virtual balconies, and accommodations for 5,479 guests at double occupancy, it offers a harmonious blend of entertainment, dining, and relaxation.

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