Wang Wei-wen (Chinese: 王韋文; pinyin: Wáng Wéiwén; born 16 December 1986) is a Taiwanese swimmer, who specialized in breaststroke events.

Wang made his own swimming history, as a 17-year-old teen, at the 2004 Summer Olympics in Athens, where he competed in the men's 200 m breaststroke.

Swimming in heat one, Wang trailed throughout the race behind Bradley Ally of Barbados, and Miguel Molina of the Philippines to come home powerfully to third and forty-second overall with a time of 2:20.65.

[2][3] At the 2008 Summer Olympics in Beijing, Wang swam in the second heat of the 200 m breaststroke event, against six other competitors, including his former rival Molina.

Wang struggled to maintain his crawl and pace in the entire race, but was able to finish it in last place, with a time of 2:17.20.