Xu Yifan (Chinese: 徐一幡; pinyin: Xú Yīfán; Mandarin pronunciation: [ɕy̌ í fǎn]; born 8 August 1988) is a professional tennis player from China. She reached a career-high ranking of No. 148 in singles, on 13 July 2015. Since October 2018, she has specialized playing in doubles. On 13 January 2020, she peaked at No. 7 in the WTA doubles rankings.