Sidney Herbert Hatch was an American athlete who competed for the United States in the 1904 Summer Olympics held in St. Louis, United States, in the 4 mile team where he won the silver medal with his teammates James Lightbody, Frank Verner, Lacey Hearn and Frenchman Albert Corey.

The Missouri Athletic Club, founded in 1903, is a private city and athletic club with two locations. The Downtown Clubhouse is in Downtown St. Louis, Missouri, USA and the West Clubhouse is located in the St. Louis County suburb of Town and Country.