Guo Hanyu (Chinese: ???; pinyin: Guo Hányù; Mandarin pronunciation: [kwó xan y]; born 18 May 1998) is a Chinese tennis player.
She has career-high WTA rankings of 278 in singles, achieved on 23 October 2017, and 122 in doubles, set on 23 July 2018.
Guo made her WTA main-draw debut at the 2017 Tianjin Open after defeating Dalila Jakupovic and Nina Stojanovic in qualifying.