Steven Dennis Dewick (born 2 February 1976) is an Australian backstroke swimmer who won a bronze medal in the 4×100-metre medley relay at the 1996 Summer Olympics in Atlanta. Dewick made his senior international debut when he was selected for Australia to compete at the Oceania Championships in 1993. A star at the 1994 Commonwealth Games in Victoria, British Columbia, Canada, he collected a silver medal in the 100-metre backstroke, and a gold medal in the 4×100-metre medley relay. Steven was voted as the performance of the games for his 100-metre backstroke.