1999 World Championships in Athletics – Men's 800 metres

These are the official results of the Men's 800 metres event at the 1999 IAAF World Championships in Seville, Spain. There were a total number of 59 participating athletes, with eight qualifying heats, three semi-finals and the final held on Sunday 29 August 1999 at 20:30h.

Heats

 * Held on Thursday 26 August 1999

Semi-final

 * Held on Friday 27 August 1999