The Olympics is a multi-sport event dating back to Earth's ancient Greece.
Irina Karlovassi won a Silver medal in the Decathlon at the Olympics in the 20th century. (ENT: "Cold Station 12")
The third host of the Dax symbiont, Emony Dax, was an Olympic gymnast. In 2375, Ezri Dax tried to remember being an Olympic athlete when playing against several Vulcans in a game of baseball. (DS9: "Take Me Out to the Holosuite")
- It is unknown if by the 23rd century (when Emony was the host of Dax) the Olympics were still held on Earth or if it is a Federation-wide event. Whether or not the Olympics would survive World War III or undergo a second revival subsequent to the same is also a mystery.