Dwain Anthony Chambers (born 5th April 1978) is a British sprinter. He holds the European 100 metres record of 9.87 seconds (shared with Linford Christie), and is the current European champion, taking gold in 2002.

In October 2003, Chambers was revealed to have tested positive for the banned steroid tetrahydrogestrinone (THG). He was given a two year ban by UK Athletics after a disciplinary hearing on 22nd February 2004. Chambers' coach, Remi Korchemny , is one of four men from the BALCO lab, currently under investigation in the United States on charges of distributing illegal drugs to athletes.

He is currently considering a move to the NFL.