Liu Xin or Xin Liu is the name of:

Liu Xin (scholar) (劉歆; 50 BCE – 23 CE), astronomer, historian, librarian, mathematician, politician and Confucian scholar of the Han dynasty Emperor Ai of Han (27–1 BC), personal name Liu Xin (劉欣), emperor of the Han dynasty Liu Xin (food scientist) (劉昕; born 1957), Chinese biologist and food scientist Liu Xin (news anchor) (刘欣; born 1975), Chinese news anchor for the state-run CCTV Liu Xin (cyclist) (劉馨; born 1986), Chinese road cyclist Liu Xin (badminton) (劉鑫; born 1990), Chinese badminton player Liu Xin (People's Liberation Army) (刘欣), People's Liberation Army member of the 11th National People's Congress Liu Xin (gymnast), Chinese rhythmic gymnast Liu Xin (film director) (born 1968), Chinese film director Xin Liu (computer scientist), Chinese-American computer scientist at UC Davis Xin Liu (philanthropist), Chinese-American philanthropist, author, and former photojournalist

See also Liu Hsin (crater), a crater on Mars, named after the Han dynasty scholar Liuxin (柳新), a town in Xuzhou, Jiangsu, China Liu Xing (born 1984), Chinese Go player Liu Yuxin (singer), Chinese singer, dancer and producer Xin Lu, Chinese UK-based cancer researcher