Wǔ Shìhuò (simplified Chinese: 武士彟; traditional Chinese: 武士彠; 559-635 CE) was the father of Wu Zetian, the only woman in the history of China to assume the title of Empress Regnant. Posthumously honored with the title of King Zhongxiao, Wu was the son of Wu Hua and became a timber merchant. He was also known as the Duke of Ying and King of Wei serving as army commander of Yingyang Prefecture during the final years of Emperor Yang of Sui (r. 605-618 CE) and subsequently as Minister of Revenue and superintendent of Jingzhou City, Hubei during the reign of Emperor Taizong of Tang (r. 627-649 CE).
Initially, Wu married a woman from the Xiangli family, who gave birth to two sons named Wu Yuanqing and Wu Yuanshuang. Later he remarried a woman from the noble Yang family of the Hong Nong region. She was daughter, niece, and sister to several ministers and a close relation of the imperial family. By her, Wu had three daughters: Wu Shun (later the Lady of Han), Wu Zhao (Empress Wu Zetian) and the Lady of Guo.