The Men's javelin throw competition at the 2012 Summer Olympics in London, United Kingdom. The event was held at the Olympic Stadium on 8–11 August.

Julius Yego is a Kenyan track and field athlete who competes in the javelin throw. Nicknamed "Mr. YouTube" because he learned how to throw by watching YouTube videos of javelin athletes, Yego is the African record holder for the event with a personal best of 92.72 m.