Princess Cruises is a British-American owned cruise line, based in Santa Clarita, California in the United States. Previously a subsidiary of P&O Princess Cruises PLC, the company is now one of eleven cruise ship brands operated by Carnival Corporation & PLC.

Being based in America, executive control of Princess Cruises was transferred to Carnival Corporation's American division following the merger between Carnival and P&O Princess in 2002, however Carnival UK is responsible for sales and marketing of the company in the United Kingdom. The company was made famous by The Love Boat TV series, in which two of its ships, the Island Princess and Pacific Princess were featured.