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.

Field hockey was introduced at the Olympic Games as a men's competition at the 1908 Games in London. India has been the most successful team at the Olympics. Having won a total of 12 medals at field hockey.