Kai-Fu Lee (simplified Chinese: 李开复; traditional Chinese: 李開復; pinyin: Lǐ Kāifù; born December 3, 1961) is a Taiwanese-born American information technology executive, writer, and computer scientist. He is currently based in China.

He became the focus of a 2005 legal dispute between Google and Microsoft, his former employer, due to a one-year non-compete agreement that he signed with Microsoft in 2000 when he became its corporate vice president of interactive services.

He is one of the most prominent figures in the Chinese internet sector. He was the founding president of Google China, serving from July 2005 through September 4, 2009. His personal blog is widely followed in China and he runs a popular website to help young Chinese people achieve in their studies and careers.

Lee was born in Taipei, Taiwan, the son of Tien-Min Li, a legislator and historian from Sichuan, China.

Lee has detailed his personal life and career history in his autobiography, Making a World of Difference, published in October 2011 and currently unavailable on Amazon.com.