Royal Caribbean International (RCI), previously known as Royal Caribbean Cruise Line (RCCL), is a cruise line brand founded in 1968 in Norway and organized as a wholly owned subsidiary of Royal Caribbean Group since 1997. Based in Miami, Florida, it is the largest cruise line by revenue and second largest by passengers counts. In 2018, Royal Caribbean International controlled 19.2% of the worldwide cruise market by passengers and 14.0% by revenue. As of January 2024, the line operates 28 ships and has three additional ships on order.

Royal Caribbean Group, formerly known as Royal Caribbean Cruises Ltd., is a global cruise holding company incorporated in Liberia and based in Miami, Florida. It is the world's second-largest cruise line operator, after Carnival Corporation & plc. As of March 2024, Royal Caribbean Group fully owns three cruise lines: Royal Caribbean International, Celebrity Cruises, and Silversea Cruises with 65 ships in the current fleet and 5 ships on order until 2028. They also hold a 50% stake in TUI Cruises and Hapag-Lloyd Cruises.