2004 MLB season
|Regular Season||March 30-October 3, 2004|
|Postseason||October 5-27, 2004|
|← 2003 • MLB seasons • 2005 →|
The 2004 MLB season ended when the Boston Red Sox defeated the St. Louis Cardinals in a four-game World Series sweep. This season was particularly notable since the Red Sox championship broke the 86-year-long popular myth known as the Curse of the Bambino. The Red Sox were also the first team in Major League Baseball history and the third team from a major North American professional sports league to ever come back from a 3–0 postseason series deficit, in the ALCS against the New York Yankees.
The Montreal Expos played their last season in Montreal, before re-locating to Washington DC the following year.