For details of what happened in the main tournaments of the year see 2004 in golf.
2004 | 2011 ATP Challenger Tour | 2012 ATP Challenger Tour | 2004 in music | 2013 ATP Challenger Tour | 2004 Summer Olympics | PGA Tour | ATP World Tour 250 series | Tour de France | ATP World Tour 250 Series | United States presidential election, 2004 | 2013 ATP World Tour | Canadian federal election, 2004 | 2012 ATP World Tour | 2001 ATP Tour | 2011 ATP World Tour | ATP World Tour 500 series | 2010 ATP World Tour | 2003 ATP Tour | Grand Tour | ATP World Tour Masters 1000 | 1996 ATP Tour | 2004 in film | 2002 ATP Tour | Battlestar Galactica (2004 TV series) | 2013 WTA Tour | 2006 ATP Tour | World Poker Tour | 2004 in baseball | 2004 ATP Tour |