2003 World Championships in Athletics – Men's 800 metres

These are the official results of the Men's 800 metres event at the 2003 IAAF World Championships in Paris, France. There were a total number of 58 participating athletes, with eight qualifying heats, three semi-finals and the final held on Sunday 31 August 2003 at 17:30h.

Semi-final

 * Held on Friday 29 August 2003

Heats
Held on Thursday 28 August 2003