Winthrop Graham (born 17 November 1965 in Westmoreland, Jamaica) is a retired athlete who mainly competed in the 400 metres hurdles. He won two Olympic medals and three World Championship medals.
His personal best time was 47.60 seconds, achieved in August 1993 at the Zurich Weltklasse meet where he beat Samuel Matete and Kevin Young. This was also the Jamaican record.
He is married to Yvonne Mai-Graham, a former East German international distance runner.
Collegiately, he competed for the Texas Longhorns.