Karen Ying-Chen Hu (; born December 9, 1984), also known as Xiao Zhen (), is a Taiwanese actress, model, and host. Her father, Hu Gua, is also a famous host in Taiwan. She is known for her roles in Lucky Days, Boysitter, and The Fierce Wife.
Born in Taipei, she attended high school in Switzerland for four years. In 2007, she married plastic surgeon Li Jinliang. However, after multiple extramarital affairs, she filed divorce papers in 2013. They have a daughter.