List of largest cruise lines in AIN

The cruise line industry is estimated to be around 45.6 billion USD with around 26 million passengers annually. The following is a list of the largest cruise lines with over 1,000 passengers annually and their market share by passengers and revenue as of 2018 according to Cruise Market Watch. The list also includes the combined market share of each of the cruise line holding companies, Carnival Corporation & plc, Royal Caribbean Cruises Ltd., Norwegian Cruise Line Holdings, and SSC Cruises.

List of largest cruise lines
Bold - Major cruise company

Italic - Not owned by a major cruise company

{| class="wikitable sortable" !Cruise line !Parent company !Passengers (thousands) !Revenue (US$ millions) !Passengers % !Revenue %
 * colspan="2" data-sort-value="Carnival" |Carnival Corporation & plc
 * 12,302.30
 * 18,305.16
 * 26.6%
 * 13.5%
 * Carnival Cruise Line
 * Carnival Corporation & plc
 * 5,716.5
 * 4,166.89
 * 22%
 * 8.9%
 * Princess Cruises
 * Carnival Corporation & plc
 * 1,667.5
 * 4,228.85
 * 6.4%
 * 9.1%
 * Costa Cruises
 * Carnival Corporation & plc
 * 1,560.6
 * 2,235.62
 * 6%
 * 4.8%
 * AIDA Cruises
 * Carnival Corporation & plc
 * 1,183.7
 * 2,128.28
 * 4.6%
 * 4.6%
 * Holland America Line
 * Carnival Corporation & plc
 * 831.5
 * 2,589.60
 * 3.2%
 * 5.6%
 * P&O Cruises
 * Carnival Corporation & plc
 * 623.4
 * 1,031.85
 * 2.4%
 * 2.2%
 * P&O Cruises Australia
 * Carnival Corporation & plc
 * 499.6
 * 548.02
 * 1.9%
 * 1.2%
 * Cunard Line
 * Carnival Corporation & plc
 * 169.6
 * 823.79
 * 0.7%
 * 1.8%
 * Seabourn Cruise Line
 * Carnival Corporation & plc
 * 49.9
 * 552.26
 * 0.2%
 * 1.2%
 * colspan="2" data-sort-value="Royal" || Royal Caribbean Cruises Ltd.
 * 5,963.80
 * 9,389.80
 * 3.8%
 * 6.2%
 * Royal Caribbean International
 * Royal Caribbean Cruises Ltd.
 * 4,987.0
 * 6,525.18
 * 19.2%
 * 14%
 * Celebrity Cruises
 * Royal Caribbean Cruises Ltd.
 * 909.5
 * 2,447.45
 * 3.5%
 * 5.3%
 * Azamara Cruises
 * Royal Caribbean Cruises Ltd.
 * 67.3
 * 417.17
 * 0.3%
 * 0.9%
 * colspan="2" data-sort-value="Norwegian" |Norwegian Cruise Line Holdings
 * 2,471.20
 * 5,833.20
 * 9.2%
 * 10.7%
 * Norwegian Cruise Line
 * Norwegian Cruise Line Holdings
 * 2,269.8
 * 3,897.80
 * 8.7%
 * 8.4%
 * Oceania Cruises
 * Norwegian Cruise Line Holdings
 * 132.5
 * 1,057.97
 * 0.5%
 * 2.3%
 * Regent Seven Seas Cruises
 * Norwegian Cruise Line Holdings
 * 68.9
 * 877.43
 * 0.3%
 * 1.9%
 * SSC Cruises
 * Sonoran Shipping Company (America West Holdings‎‎)
 * 1,876.2
 * 3,148.90
 * 7.2%
 * 6.8%
 * Norwegian Cruise Line Holdings
 * 132.5
 * 1,057.97
 * 0.5%
 * 2.3%
 * Regent Seven Seas Cruises
 * Norwegian Cruise Line Holdings
 * 68.9
 * 877.43
 * 0.3%
 * 1.9%
 * SSC Cruises
 * Sonoran Shipping Company (America West Holdings‎‎)
 * 1,876.2
 * 3,148.90
 * 7.2%
 * 6.8%
 * 7.2%
 * 6.8%