{"version":"1.9","identifier":"d7c34261-32ec-4321-9b88-340009fb8ea5","language":"en-US","title":"The 10 largest cruise ships in service: Royal Caribbean holds the top nine spots","layout":{"columns":7,"width":1024,"margin":32,"gutter":20},"componentLayouts":{"text":{"columnStart":0,"columnSpan":7,"maximumContentWidth":720,"margin":{"top":12,"bottom":12}},"photo":{"columnStart":0,"columnSpan":7,"margin":{"top":20,"bottom":20}}},"componentTextStyles":{"default":{"fontName":"HelveticaNeue","fontSize":18,"lineHeight":29,"textColor":"#171717"},"headline":{"fontName":"HelveticaNeue-Bold","fontSize":36,"lineHeight":42,"conditional":[{"conditions":{"maxViewportWidth":480},"fontSize":28,"lineHeight":34}]},"intro":{"fontName":"HelveticaNeue","fontSize":20,"lineHeight":28,"textColor":"#555555"},"caption":{"fontName":"HelveticaNeue","fontSize":13,"lineHeight":19,"textColor":"#666666"},"byline":{"fontName":"HelveticaNeue","fontSize":13,"lineHeight":20,"textColor":"#666666"},"body":{"fontName":"HelveticaNeue","fontSize":18,"lineHeight":29,"paragraphSpacingAfter":14,"linkStyle":{"textColor":"#00704a"}}},"metadata":{"canonicalURL":"https://cruisesfrog.com/news/largest-cruise-ships-in-service-ranked-2026","datePublished":"2026-10-25T23:59:38.62892Z","dateModified":"2026-10-26T00:00:01.559029Z","authors":["Patrick Karsh"],"excerpt":"We ranked every in-service ship in Cruise Frog's data by gross tonnage. One MSC ship breaks up the Royal Caribbean wall.","thumbnailURL":"https://pub-fac99da959e344fe99d810d309cef7df.r2.dev/photos/article/d7c34261-32ec-4321-9b88-340009fb8ea5/507c5d27d50cf8204e8a79a010d65d61.jpg","keywords":["ship"],"generatorName":"Frog News","generatorVersion":"1.0"},"components":[{"role":"title","text":"The 10 largest cruise ships in service: Royal Caribbean holds the top nine spots","textStyle":"headline","layout":"text"},{"role":"intro","text":"We ranked every in-service ship in Cruise Frog's data by gross tonnage. One MSC ship breaks up the Royal Caribbean wall.","textStyle":"intro","layout":"text"},{"role":"byline","text":"By Patrick Karsh · Published October 25, 2026","textStyle":"byline","layout":"text"},{"role":"photo","URL":"https://pub-fac99da959e344fe99d810d309cef7df.r2.dev/photos/article/d7c34261-32ec-4321-9b88-340009fb8ea5/507c5d27d50cf8204e8a79a010d65d61.jpg","caption":"A Royal Caribbean rendering of three Icon-class ships at sea. · Royal Caribbean","accessibilityCaption":"A Royal Caribbean rendering of three Icon-class ships at sea.","layout":"photo"},{"role":"caption","text":"A Royal Caribbean rendering of three Icon-class ships at sea. · Royal Caribbean","textStyle":"caption","layout":"text"},{"role":"body","format":"markdown","text":"Royal Caribbean doesn't just have the biggest cruise ship in the world. In Cruise Frog's ship data, it has the nine biggest.\n\nWe sorted all 604 ships listed as in service in our catalog by gross tonnage, the standard measure of a ship's enclosed volume. The top of the list is a Royal Caribbean wall, and you have to go to No. 10 to find another line.\n\nAll rankings and figures below come from Cruise Frog's own ship records. Cruise lines sometimes quote slightly different tonnage figures for the same ship, so treat close calls as close.\n\n## The top 10 largest cruise ships in service","textStyle":"body","layout":"text"},{"role":"htmltable","html":"
RankShipDebutGross tons
1 (tie)Icon of the Seas2024248,663
1 (tie)Star of the Seas2025248,663
1 (tie)Legend of the Seas2026248,663
4Utopia of the Seas2024236,473
5Wonder of the Seas2022235,600
6Symphony of the Seas2018228,081
7Harmony of the Seas2016226,963
8Oasis of the Seas2009226,838
9Allure of the Seas2010226,637
10MSC World America (MSC)2025216,638
","layout":"text"},{"role":"body","format":"markdown","text":"All nine ships above MSC World America belong to Royal Caribbean.\n\n## Royal Caribbean's two classes own the top nine\n\nThe top three are the Icon-class sisters: Icon of the Seas, Star of the Seas and the newest, Legend of the Seas. Our records list all three at the same tonnage.\n\nSpots four through nine belong to Royal Caribbean's six Oasis-class ships. The oldest, Oasis of the Seas, debuted in 2009 and is still bigger than any ship from another line.\n\n## Biggest is not the same as most crowded\n\nThe ship with the most guests in our top 10 is not a Royal Caribbean ship. MSC World America is listed at 6,762 guests, more than any Icon-class ship, on about 32,000 fewer gross tons.\n\nThat is why we also track the passenger space ratio, or gross tons per guest. A higher number means more room per person. In our data, Icon of the Seas scores 44.3, while MSC World America scores 32. For a ranking built on that measure, see our list of the [most spacious cruise ships](https://cruisesfrog.com/news/most-spacious-cruise-ships-passenger-space-ratio-2026).\n\n## The next five\n\nJust outside the top 10, our data shows:\n\n11. **MSC World Europa** (MSC Cruises), 215,863 gross tons\n12. **Disney Adventure** (Disney Cruise Line), 208,108 gross tons\n13. **Costa Toscana** (Costa Cruises), 186,364 gross tons\n14. **Arvia** (P\\&O Cruises), 185,581 gross tons\n15. **Costa Smeralda** (Costa Cruises), 185,010 gross tons\n\nDisney Adventure stands out here. It is the biggest ship in our data from a line other than Royal Caribbean or MSC.\n\n## Bigger ships are on the way\n\nThe list will keep changing. Our catalog shows several large ships due in the next few years, including:\n\n* **MSC World Asia**, due in December 2026\n* **Hero of the Seas**, Royal Caribbean's next Icon-class ship, due in 2027\n* **MSC World Atlantic**, due in 2027\n\nOur ship records are updated as new ships are delivered. Want to know how old each line's fleet is? Read our [ranking of the oldest and newest cruise fleets](https://cruisesfrog.com/news/oldest-newest-cruise-fleets-ranked-average-ship-age-2026).\n\n*Source: Cruise Frog ship data, as of Oct. 25, 2026. Gross tonnage and guest counts as recorded in our catalog.*","textStyle":"body","layout":"text"}]}