Leonard Byrd (born March 17, 1975 in Fort Rucker, Alabama) is an American sprinter who specializes in the 400 metres. His personal best time is 44.45 seconds, achieved in May 2002 in Belém, Brazil. This was the fastest time of 2002.
He originally won the gold medal in the 4 × 400 metres relay at the 2001 World Championships in Edmonton, together with teammates Antonio Pettigrew,
Derrick Brew and Angelo Taylor, but the team was disqualified when Antonio Pettigrew admitted to using performance-enhancing drugs. He also competed in the individual distance, but only reached the semi-final.