Rui Naiwei is a Chinese professional Go player, now active in South of Korea.
She was born in Shanghai, China, and lives in Seoul, South of Korea, with her husband, Jiang Zhujiu, also a 9-dan professional.
She and Jiang participate actively in Korean tournaments. After starting to play around 1975 (at the age of 11—the age some other players go pro) she became a pro for the Zhongguo Qiyuan in 1985, being promoted all the way to 7-dan that year. After that, Chinese Feng Yun and Korean Pak Chi-eun became the second, third female go player to reach 9 dan, following Rui Naiwei.
Leaving China in 1989, she moved to Japan.
While the Nihon Ki-in did not allow her to play in any Japanese tournaments, she was able to make it to the semi-finals of the international Ing Cup in 1992. Rui"s style tends to be extremely aggressive, and often characterized by large scale semeai.