Ning Li (Chinese: 李宁, pinyin: Lǐ Níng; January 14, 1943 – July 27, 2021) was a Chinese American scientist. Born in Shandong, she graduated from the Department of Physics of Peking University, and in 1983 she emigrated with her family from China to the United States.[1] She is known for her physics and anti-gravity research. In the 1990s, Li worked as a research scientist at the Center for Space Plasma and Aeronomic Research, University of Alabama in Huntsville. In 1999, she left the university to form a company, AC Gravity LLC, to continue anti-gravity research.