Marriott International, Inc. beskæftiger sig med drift, franchising og licensiering af hoteller, boliger, ferielejligheder og andre overnatningssteder verden over. Selskabet driver sine ejendomme under navnene JW Marriott, The Ritz-Carlton, The Luxury Collection, W Hotels, St. Regis, EDITION, Bvlgari, Marriott Hotels, Sheraton, Westin, Autograph Collection, Renaissance Hotels, Le Méridien, Delta Hotels by Marriott, Tribute Portfolio, Gaylord Hotels, Design Hotels, Marriott Executive Apartments, Apartments by Marriott Bonvoy, Courtyard by Marriott, Marriott Bonvoy, Fairfield by Marriott, Residence Inn by Marriott, SpringHill Suites by Marriott, Four Points by Sheraton, TownePlace Suites by Marriott, Aloft Hotels, AC Hotels by Marriott, Moxy Hotels, Element Hotels, Protea Hotels by Marriott, City Express by Marriott og St. Regis Longboat Key samt driver boliger, ferielejligheder og yachts. Selskabet blev grundlagt i 1927 og har hovedkontor i Bethesda, Maryland.