Liu Xin (born 11 June 1990) is a Chinese professional badminton singles player. Born in Benxi, Liaoning, her string of good performances during the 2010 and early 2011 helped her to attain the career-best ranking of 5 in April 2011. She was part of the Chinese team that won gold medals at the 2010 and 2014 World University Championships, and also at the 2014 Asian Games.