Lai-Sheng Wang (simplified Chinese: 王来生; traditional Chinese: 王來生; pinyin: wang laisheng, born 1961 in Henan, China) is an experimental physical chemist currently serving as the Chair of the Chemistry Department at Brown University.

He was named the Jesse H. and Louisa D. Sharpe Metcalf Professor of Chemistry in 2015 and Chair of the Department in 2019.

His group has also developed ion-trap techniques to create ultracold anions that allow high resolution photoelectron spectroscopy to be performed on complex molecules.

In 2014, Wang's a research team at Brown University showed that the structure of B36 was not only possible but highly stable.

[6][7] Wang has published over 530 articles, which have been featured in publications such as Nature Magazine, Science, Physical Review Letters, Angewandte Chemie, and the Journal of the American Chemical Society.