The men's horizontal bar competition was one of eight events for male competitors in artistic gymnastics at the 2000 Summer Olympics in Sydney. The qualification and final rounds took place on September 16 and 25 at the Sydney Super Dome. There were 79 competitors from 28 nations; nations competing in the team event could have up to 5 gymnasts in the vault, while other nations could have up to 2 gymnasts. The event was won by Alexei Nemov of Russia, the nation's first post-Soviet victory in the horizontal bar. Nemov, a bronze medalist in 1996, was the 10th man to win multiple medals in the horizontal bar. Benjamin Varonian earned France's first medal in the event since 1976 with his silver. Lee Joo-Hyung won South Korea's first medal in the event with his bronze.