What is largest cruise ship in the world?

The Oasis of the Seas, with a gross tonnage weight of 220,000 is, by far, the largest cruise ship in the world. It's owner is Royal Caribbean. This cruise ship holds over 6,000 passengers and has a staff of 2,000. It has 18 decks, is longer than 3 football fields and is 208 feet wide. Over 130,000 meals per week are served on this ship.

Only the largest oil tankers are bigger than this cruise ship.