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    World's Biggest Cruise Ships
    Top 10 by Gross Tonnage

    World's Biggest Cruise Ships

    Discover the largest cruise ships ever built - floating cities with more activities, dining, and entertainment than anywhere on land.

    250,800

    Largest GT

    7,600

    Max Passengers

    365m

    Ship Length

    18

    Decks

    #1

    Icon of the Seas

    Royal Caribbean

    Gross Tonnage

    250,800 GT

    Passengers

    7,600

    Ship Length

    365m

    Launched

    2024

    World's largest cruise ship
    AquaDomeCategory 6 WaterparkThrill Island8 Neighborhoods
    #2

    Star of the Seas

    Royal Caribbean

    Gross Tonnage

    250,800 GT

    Passengers

    7,600

    Ship Length

    365m

    Launched

    2025

    Newest Icon Class ship
    First suspended infinity poolCrown's Edge6 record-breaking waterslides
    #3

    Utopia of the Seas

    Royal Caribbean

    Gross Tonnage

    236,860 GT

    Passengers

    6,509

    Ship Length

    362m

    Launched

    2024

    Largest Oasis Class
    First LNG Oasis shipWeekend getaway focusUltimate Abyss
    #4

    Wonder of the Seas

    Royal Caribbean

    Gross Tonnage

    235,600 GT

    Passengers

    7,084

    Ship Length

    362m

    Launched

    2022

    Former world's largest
    Suite Neighborhood8 distinct neighborhoods10 whirlpools
    #5

    Symphony of the Seas

    Royal Caribbean

    Gross Tonnage

    228,081 GT

    Passengers

    6,680

    Ship Length

    361m

    Launched

    2018

    Oasis Class icon
    Ultimate Abyss slideGlow laser tagBroadway shows
    #6

    Harmony of the Seas

    Royal Caribbean

    Gross Tonnage

    226,963 GT

    Passengers

    6,687

    Ship Length

    362m

    Launched

    2016

    First Ultimate Abyss
    Ultimate Abyss debutBionic BarCentral Park
    #7

    Oasis of the Seas

    Royal Caribbean

    Gross Tonnage

    226,838 GT

    Passengers

    6,771

    Ship Length

    362m

    Launched

    2009

    The original game-changer
    Original neighborhood conceptAquaTheaterBoardwalk
    #8

    Allure of the Seas

    Royal Caribbean

    Gross Tonnage

    225,282 GT

    Passengers

    6,780

    Ship Length

    362m

    Launched

    2010

    Oasis Class sister
    Zip lineCarouselCentral ParkBoardwalk
    #9

    MSC World America

    MSC Cruises

    Gross Tonnage

    216,638 GT

    Passengers

    6,762

    Ship Length

    333m

    Launched

    2025

    First US-based World Class
    Cliffhanger over-water swing11-deck dry slideThe Harbour waterpark
    #10

    MSC World Europa

    MSC Cruises

    Gross Tonnage

    215,863 GT

    Passengers

    6,762

    Ship Length

    333m

    Launched

    2022

    LNG-powered flagship
    Y-shaped aft design104m outdoor promenadeLongest dry slide at sea

    Coming in 2026

    Disney Adventure

    Disney Cruise Line • December 2026

    208,108 GT Global Class. Largest Disney ship ever, featuring the longest coaster at sea.

    Legend of the Seas

    Royal Caribbean • July 2026 (in sea trials)

    3rd Icon Class ship (~250,800 GT). First Icon Class to sail the Mediterranean from Barcelona.

    MSC World Asia

    MSC Cruises • December 2026

    3rd World Class ship at 215,863 GT with 6,758 passengers - Y-shaped aft design and 7 themed districts.