Empson Othman Desai Williams (June 12, 1959 – April 10, 2022)[1][2] was a Canadian sprinter, who won an Olympic bronze medal in 4 x 100 metres relay in Los Angeles 1984.

Williams trained with the Scarborough Optimists Track Club, which was affiliated with the Ben Johnson scandal.

Club coach Charlie Francis, working with Dr. Jamie Astaphan, had supplied performance-enhancing drugs to Johnson, Williams, Tony Sharpe, Angella Taylor, Mark McKoy, and others.

Williams also worked as the speed coach for the Toronto Argonauts, training Olympic athletes Tremaine Harris, Phylicia George.

A probe found that Williams had violated the organization's sexual harassment policy while a coach in 2010.