William Wynne is an American hurdler who specializes in the 400 metre hurdles. He currently holds the world youth best in the 400 m hurdles (84 cm) with a time of 49.01 seconds, 0.85 seconds under the previous record set by South Africa's Marnus Kritzinger in 1999. He won two gold medals and a silver medal at the 2007 World Youth Championships in Athletics, which also earned him the 2007 USATF Youth Athlete of the Year award. Wynne is a graduate of McEachern High School in Powder Springs, Georgia.
- Occupation
- athletics competitor
- Citizenship
- United States
- Born
- January 30, 1990
