| Synchronized swimming at the Games of the XXVIII Olympiad | |
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| Venue | Athens Olympic Aquatic Centre |
| Dates | 23–27 August 2004 |
| Competitors | 104 from 24 nations |
Synchronized swimming at the 2004 Summer Olympics was held in the Olympic Aquatic Centre where 104 competitors challenged for 2 gold medals in the duet and team events. Each event was made up of a technical and free routine with the points added together to determine the medalists.