Qian Lingxi (Chinese: ???; 16 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.