These are the results of the men's singles competition in badminton at the 2008 Summer Olympics in Beijing.

Matches were played using a best-of-three games format.

Games were played to 21 points, using rally scoring.

The top eight seeds in the tournament were placed in the bracket so as not to face each other until the quarterfinals.

Two players for China – Lin Dan and Chen Jin – took gold and bronze, respectively – while Lee Chong Wei of Malaysia won silver in the men's singles tournament.