Woo Chul (also Woo Cheol, Korean: 우 철; born June 20, 1978, in Seoul) is a retired South Korean swimmer, who specialized in middle-distance freestyle events. He is a two-time Olympian (1996 and 2000), and a double medalist at the Asian Games (1994 and 1998). Woo started his competitive swimming, as a 16-year-old South Korean teenager, at the 1994 Asian Games in Hiroshima, Japan. He helped the South Koreans earn a silver medal in the 4×200 m freestyle relay with a time of 7:33.61.