2010 Prix de l'Arc de Triomphe
The 2010 Prix de l'Arc de Triomphe was a horse race held at Longchamp on Sunday 3 October 2010. It was the 89th running of the Prix de l'Arc de Triomphe.
The winner was Workforce, a three-year-old colt trained in Great Britain by Sir Michael Stoute. The winning jockey was Ryan Moore.
Workforce had previously won the Epsom Derby, but had finished only fifth in the King George VI and Queen Elizabeth Stakes. The decision to run in the "Arc" had not been confirmed until three days before the race.