Sun Xuliu (; ; 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. 384. On 1 May 2017, she peaked at No. 268 in the doubles rankings.
Sun made her WTA Tour main-draw debut in the doubles draw of the 2017 Jiangxi International Open, partnering Zheng Wushuang.