Caesars Entertainment, formerly Eldorado Resorts, is an American hotel and casino entertainment company Caesars Entertainment has also been the name of several other casino companies: Harrah's Entertainment, named Caesars Entertainment Corporation from 2010 to 2020 Park Place Entertainment, named Caesars Entertainment, Inc., from 2003 to 2005 See also Caesars World, casino operator from 1971 to 1999