Sang Xu (born 29 September 1986 in Harbin, China), or Stephanie Sang, is a Chinese-Australian table tennis player and Olympian.

She competed at the 2008 Summer Olympics, reaching the second round of the singles competition.

She currently resides in Melbourne, Victoria.

She has qualified to represent Australia at the 2020 Summer Olympics.

This biographical article relating to an Australian table tennis figure is a stub.