Wondering what the largest cruise ships in the world are? You’re not alone! This list of biggest cruise ships in the world changes annually, as cruise lines update their fleets. While Royal Caribbean continues to dominate the top (and the bottom) of the list, new entries may surprise you! 🚢 Royal Caribbean’s Oasis of the Seas offers 18 total decks along with 2,801 staterooms, almost 2,000 of which have balconies. 🚢 Royal Caribbean’s Allure of the Seas has 18 total decks and 2,742 staterooms (i