There's something about mega-ships, those floating skyscrapers laid sideways. So here lies our list of the world's largest cruise vessels, ranked in order of gross tonnage, a measure of volume (and not weight). You'll also find stats on passenger capacity (both double occupancy, the industry standard, and max occupancy, which accounts for all third and fourth beds onboard), length and beam, the width at the widest point of the vessel. We've listed the maximum beam, which is usually the beam of the upper pool deck as opposed to the actual hull at the waterline.Click on any ship name for a comprehensive expert review covering everything from cabins to dining, hundreds of reader reviews, deck plans and itinerary info.

Length: 1,184 feetBeam (Maximum): 215.5 feetPassengers (Double/Max): 5,518/6,680

Length: 1,188 feetBeam (Maximum): 215.5 feetPassengers (Double/Max): 5,479/6,780

Length: 1,187 feetBeam (Maximum): 215 feetPassengers (Double/Max): 5,606/6,699

Length: 1,187 feetBeam (Maximum): 215 feetPassengers (Double/Max): 5,484/6,780

Length: 1,106 feetBeam (Maximum): 138 feetPassengers (Double/Max): 5,224/6,554

Length: 1,130 feetBeam (Maximum): 138 feetPassengers (Double/Max): 5,250/6,600

Length: 1,106 feetBeam (Maximum): 138 feetPassengers (Double/Max): 5,252/6,654

Length: 1,130 feetBeam (Maximum): 138 feetPassengers (Double/Max): 5,282/6,630

Length: 1,087 feetBeam (Maximum): 141 feetPassengers (Double/Max): 5,264/6,761

Length: 1,036 feetBeam (Maximum): 141 feetPassengers (Double/Max): 4,488/5,655

Length: 1,036 feetBeam (Maximum): 141 feetPassengers (Double/Max): 4,434/5,686

Length: 1,138 feetBeam (Maximum): 161.5 feetPassengers (Double/Max): 4,246/5,622

Length: 1,094 feetBeam (Maximum): 157.9 feetPassengers (Double/Max): 3,998/N/A

Length: 1,138 feetBeam (Maximum): 162 feetPassengers (Double/Max): 4,180/4,905

Length: 1,138 feetBeam (Maximum): 162 feetPassengers (Double/Max): 4,180/4,905

Length: 1,142 feetBeam (Maximum): 162 feetPassengers (Double/Max): 4,180/4,905

Length: 1,093 feetBeam (Maximum): 158 feetPassengers (Double/Max): 4,004/N/A

Length: 1,094 feetBeam (Maximum): 158 feetPassengers (Double/Max): 3,804/N/A

Length: 1,069 feetBeam (Maximum): 153 feetPassengers (Double/Max): 4,248/N/A

Length: 1,111 feetBeam (Maximum): 184 feetPassengers (Double/Max): 3,634/4,375

Length: 1,112 feetBeam (Maximum): 184 feetPassengers (Double/Max): 3,634/4,375

Length: 1,111 feetBeam (Maximum): 184 feetPassengers (Double/Max): 3,858/4,560

Length: 1,081 feetBeam (Maximum): 133 feetPassengers (Double/Max): 4,100/N/A

Length: 1,160 feetBeam (Maximum): 135 feetPassengers (Double/Max): 4,132/5,336

Length: 1,160 feetBeam (Maximum): 135 feetPassengers (Double/Max): 4,132/5,336

Length: 1,100 feetBeam (Maximum): 145 feetPassengers (Double/Max): 3,348/4,500

Length: 1,100 feetBeam (Maximum): 145 feetPassengers (Double/Max): 3,348/4,500

Length: 1,132 feetBeam (Maximum): 147 feetPassengers (Double/Max): 2,691/3,090

Length: 1,068 feetBeam (Maximum): 169 feetPassengers (Double/Max): 3,969/N/A

Length: 1,068 feetBeam (Maximum): 169 feetPassengers (Double/Max): 3,969/N/A
1. Symphony of the Seas - 228,081 GT

2. Harmony of the Seas- 226,963 GT

3. Oasis of the Seas - 226,838 GT

4. Allure of the Seas - 225,282 GT

5. Costa Smeralda - 185,010 GT

6. Iona - 184,089 GT

7. AIDAnova - 183,858 GT

8. Mardi Gras - 181,808 GT

9. MSC Grandiosa - 181,541 GT

10. MSC Meraviglia- 171,598 GT

11. MSC Bellissima - 171,598 GT

12. Spectrum of the Seas - 169,379 GT

13. Norwegian Encore - 169,116 GT

14. Quantum of the Seas - 168,666 GT

15. Anthem of the Seas - 168,666 GT

16. Ovation of the Seas - 168,666 GT

17. Norwegian Bliss - 168,028 GT

18. Norwegian Joy - 167,725 GT

19. Norwegian Escape - 165,157 GT

20. Freedom of the Seas - 156,271 GT

21. Liberty of the Seas - 155,889 GT

22. Independence of the Seas- 155,889 GT

23. Norwegian Epic - 155,873 GT

24. MSC Seaview - 153,516 GT

25. MSC Seaside - 153,516 GT

26. Genting Dream - 150,695 GT

27. World Dream - 150,695 GT

28. Queen Mary 2 - 149,215 GT

29. Norwegian Breakaway - 145,655 GT

30. Norwegian Getaway - 145,655 GT

Updated January 12, 2021
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