Sun Xuliu (Chinese: 孙旭柳; pinyin: Sūn Xùliǔ; Mandarin pronunciation: [swə́n ɕŷ ljòʊ]; born 7 March 1994) is a former professional Chinese tennis player.

On 14 May 2018, she achieved her career-high singles ranking of world No.

Sun made her WTA Tour main-draw debut in the doubles draw of the 2017 Jiangxi International Open, partnering Zheng Wushuang.

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