At the 1904 Summer Olympics of St. Louis, Missouri, eleven gymnastics events were contested for the first time.
The 1904 Games had a program of events spread out over several months, and the gymnastics competition was no different. The International Olympic Committee considers two sets of events as "Olympic":
- International Turners' Championship held July 1–2, comprising the all-around, triathlon, and team events
- Olympic Gymnastics Championships held October 29, comprising the seven individual apparatus events and the combined event.
The individual all-around was a combination of the gymnastic triathlon competition and the athletics triathlon. The team competition was a combination of individual scores from the individual all-around.
The parallel bars, horizontal bar, vault, and pommel horse scores for each gymnast were summed to get the combined score.
Medal summary
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| All-around<br />
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| Combined<br />
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| Triathlon<br />
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| Team<br />
| <br />Philadelphia Turngemeinde<br />John Grieb<br />Anton Heida<br />Max Hess<br />Philip Kassel<br />Julius Lenhart (AUT)<br />Ernst Reckeweg
| <br />New York Turnverein<br />Emil Beyer<br />John Bissinger<br />Arthur Rosenkampff<br />Julian Schmitz<br />Otto Steffen<br />Max Wolf
| <br />Central Turnverein, Chicago<br />John Duha<br />Charles Krause<br />George Mayer<br />Robert Maysack<br />Philip Schuster<br />Edward Siegler
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| Club swinging <br />
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|-valign="top"
| Horizontal bar<br />
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| none awarded
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| Parallel bars<br />
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| Pommel horse<br />
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| Rings <br />
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| Rope climbing<br />
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|-valign="top"
| Vault<br />
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| none awarded
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Participating nations
119 gymnasts from 4 nations competed.