Qian Lingxi (Chinese: 钱令希; 26 July 1916 – 20 April 2009), also known as Tsien Ling-hi, was a Chinese civil engineer and physicist. An authority on engineering structural mechanics and computational mechanics, he served as president of the Dalian University of Technology (DUT) and was a founding member of the Chinese Academy of Sciences (CAS). DUT's Lingxi Library, opened in 2009, is named after him.