Yang Sung-hsien (, born October 6, 1977) is a Taiwanese baseball player who currently plays for Uni-President 7-Eleven Lions of Chinese Professional Baseball League. He currently plays as left fielder for the Lions. Yang was banned from playing in CPBL for protesting the Chinatrust Whales' management in 2003. The ban was lifted in 2005 with the helps of Uni-President Lions, La New Bears, and Chinatrust Whales under a new general manager; the three organization contested the 2003 decision of the league, and successfully lifted the ban.