Tonja Yvette Buford-Bailey (born December 13, 1970, in Dayton, Ohio) is an American former Olympian who competed mainly in the 400 meter hurdles.

[1][2] Her best result came in the 1995 World Championships held in Gothenburg, Sweden where she won the silver medal in the 400-meter hurdles, losing to compatriot Kim Batten by only 0.01 seconds.

She went on to have some further successes, only just missing out on a bronze medal at the 2001 World Championships[4] and winning her event at the IAAF Grand Prix Final that year.

[5] Buford-Bailey is the men and women's track and field Sprint and Relay coach at the University of Texas, Austin, beginning in June 2013.

Buford-Bailey was the head women's track and field coach at the University of Illinois, Urbana-Champaign.