Field hockey at the 2004 Summer Olympics – Men's tournament
The men's field hockey tournament at the 2004 Summer Olympics was the 20th edition of the field hockey event for men at the Summer Olympic Games. It was held over a thirteen-day period beginning on 15 August, and culminating with the medal finals on 27 August. All games were played at the hockey centre within the Hellinikon Olympic Complex in Athens, Greece.
Australia won the gold medal for the first time after defeating defending champions the Netherlands 2–1 in the final. Germany won the bronze medal by defeating Spain 4–3.
Qualification
Each of the continental champions from five federations received an automatic berth. Alongside the seven teams qualifying through the Olympic Qualification Tournament, twelve teams competed in this tournament.| Dates | Event | Location | Qualifier |
| 30 September – 12 October 2002 | 2002 Asian Games |  Busan, South Korea | |
| 2–13 August 2003 | 2003 Pan American Games |  Santo Domingo, Dominican Republic | |
| 1–13 September 2003 | 2003 EuroHockey Nations Championship |  Barcelona, Spain | |
| 17–21 September 2003 | 2003 Oceania Cup |  Christchurch and Wellington, New Zealand | |
| 10–16 October 2003 | 2003 All-Africa Games |  Abuja, Nigeria | |
| 2–13 March 2004 | Olympic Qualification Tournament | Madrid, Spain |
Although the host nation would have qualified automatically as well, the International Hockey Federation and the International Olympic Committee refused to give them an automatic berth due to the standard hockey in Greece. Greece appealed the decision to the Court of Arbitration for Sport, however it was turned down. Greece's first option to gain a place at the Olympics was by qualifying for the EuroHockey Nations Championship held in 2003. As they did not qualify for this tournament their last option was to beat Canada, the last ranked team of the Olympic Qualification Tournament in a best of three play-off competition. Canada would have kept its place in the Qualifier regardless of whether it won or lost against Greece. There would, however, have been six places at stake at the tournament if Greece had qualified, rather than the seven eventually available. Greece lost the first two matches against Canada, losing their chance to qualify to the Olympics.
Umpires
Rosters
Preliminary round
All times are Eastern European TimePool A
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Pool B
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