Stanley L. London (December 5, 1925 – June 8, 2020) was an American doctor who worked with St. Louis Cardinals players beginning in 1956. The Springfield, Illinois, native became head physician for the team after I. C. Middleman died in 1968. He held this position for 29 seasons and became the team's senior medical adviser in October 1997. London was also team physician for the St. Louis Hawks for 11 seasons.
London received his medical degree from Washington University in 1949. He was a fellow in the American Board of Surgeons and the American College of Surgeons.
London was a top amateur athlete. He was the first inductee into the Missouri Handball Hall of Fame. He is also a member of the Illinois Basketball Hall of Fame, the Springfield (Illinois) High School Hall of Fame, and the Missouri Sports Medicine Hall of Fame.
His brother was Norman Sidney London, a locally famous St. Louis attorney, who died on March 1, 2014.