The men's eight competition was one of six events for male competitors in Rowing at the 2004 Summer Olympics in Athens. It was held from 15 to 22 August. There were 9 boats from 9 nations, with each nation limited to a single boat in the event. The event was won by the United States, the nation's first victory in the men's eight since 1964 and 12th overall. The Netherlands took silver. Australia, the reigning silver medalist, finished with bronze this time.

Rowing at the 2004 Summer Olympics took place at the Schinias Olympic Rowing and Canoeing Centre and featured 550 competitors taking part in 14 events.