The 2007 World Series of Poker (WSOP) began on June 1, 2007. The $10,000 (US) no-limit Texas hold 'em Main Event began on July 6 and was completed on the morning of July 18th. All events were held at the Rio All Suite Hotel and Casino in Las Vegas, Nevada, by Harrah's Entertainment, which has run the annual event since its purchase from the Binion family in 2004.

The World Series of Poker (WSOP) is a series of poker tournaments held annually in Paradise, Nevada and, since 2004, sponsored by Caesars Entertainment. It dates its origins to 1970, when Benny Binion invited seven of the best-known poker players to the Horseshoe Casino for a single tournament, with a set start and stop time, and a winner determined by a secret ballot of the seven players.