Dwayne Romel Smith (born 12 April 1983, Storey Gap, St Michael, Barbados) is a West Indies all-rounder who plays Tests and One Day Internationals. He is a hard hitting right-handed batsman and bowls right arm medium pace. An athletic fielder, he is one of the better in the West Indian side.

Smith made a run-a-ball 105 not out on Test debut against South Africa in 2003–04. His 93 ball hundred was the fastest ever by a debuant in Test cricket. It was the 3rd time that a batsman from Barbados has made a debut century, after Conrad Hunte and Gordon Greenidge. He however failed to make a half-century in his 9 Tests since, with his second-highest Test score of 42 coming against the bottom-ranked Bangladesh.

Against a the touring Bangladeshis in May 2004, Smith scored 103 not out off 70 balls in a game for the West Indies Board XI.

In one-day cricket, Smith has managed to have a strike rate of over 100 after 60 ODI games. He has two one-day half-centuries, 62 not out against Bangladesh and 68 at the 2005 Indian Oil Cup. His best figures with the ball are 5/45, made against India in Kuala Lumpur.

He had joined the IPL franchise of the Mumbai Indians in the absence of fellow West Indian Dwayne Bravo.